F’ED.STD. .NO.

66D
-h 8, 1979
SUPEXSEDRfG
Fed. Std. NO. 66C
~pfi 18, 1967

mm STANDM?D

S’TEEI# ~c.cu coMPosrrxoN

AND EMaDlmmxum

This Sbnd&rd was appmd by tbe commissioner,

Federalsupply service, General Stices MmlnMsa-
tioll, fortbeuse ofdl~edm=l~.

7his cbcument is available

fromthe GeneralStmrices.~ (GSA) ,
acting
as an age~tb tie Superhtendent d Mcuxnent. A CWY far biddbg
and cmk’ac-~g ycyoses ‘is mailable5orn GSA hsiness Serrice Canters.
Copies ar= fursale attbe GSA, Speci?hsdcnzs& Consuma hif~
mstsbu+a Brszxiz. 13Mg . 197 fi~=ae N-Y y-) t ~*@ox s Dc
20407.

?5C 95G? “
 FEDERAL STANDARD

STEEL: CiiEMICfi COMPOSITION AND HARDENABILITY

S 1. This Federal standard is issued in loose leafform to permit the

insertionor removal of new or revised pages.

,S2. All users of Federal standards should keep them up to date by inserting
revised or new pages as issued and removing superseded and cancel.led pages.

S3. New and revised pages willbe issued under change noticeswhich wiIl
be numbered consecutivelyand willbear the date of issuance. Change notices
should be retainedand filedin frontof the standard untilsuch time as they
are superseded by a reissue of the entirestandard.

S4. changes. When a Federal agency considers thatthisstandard does not

provide foritsessen “-ial
needs, written request for changing or adding to the
standard, supported by adequate justification,shallbe sent to the Administra-
tion. This justilcatk.nshallexplain wherein the standard does not provide
for essentialneeds. The request shallbe sent in duplicateto the General
Services Administration,Federal Supply Service, Washington, DC 20406.
The Administrationwilldetermine the appropriate actionto be tdsen end will
notifythe agency.

S5. Confiictwith referenced specifications.Where the requirements

statedin thisstandard conflictwith any requirement in a referenced speci-
fication,the requirements of *e st~d=d sha~ aPPIY Na@re of conflict -
●

between the standard and the referenced specification

shallbe submitted in
duplicateto the General Services Administration,Federal Supply Service,
Washington, DC 20406.

(Activitiesoutside the Federal Government may obtaincopies of Federtil

SpecKlcations,Standards, and Handbooks as outlinedunder General Information
in the Index of Federal Specificationsand Standards and at the prices indka-
ted in the Index. The Xndex, which includes cumulative monthly supplements
as issued, is for saleon a subscriptionbasis by the Superintendent of
Documents, U.S. Government PrintingOffice,Washington, DC 20402.

(Sinclecopies of this spectilcationand other Federal specifications

required by activitiesoutside the Federal Government for bidding purposes “

1
Fed. Std. No. 66D

are availablewithout charge from Business Service Centers at the

General Services A dmnistration
“ Regional Officesin Boston, New York,
Philadelphia,Washington, DC, Atlanta,Chicago, Kansas City, MO,
Fort Worth, Houston, Denver, San Francisco, Los Angeles, and
Seattle,WA.

(FederalGovernment activitiesmay obtaincopies of Federal

Specifications,Standards, end Handbooks and the Index of Federal
Specificationsand Standards from establisheddistributionpoints
in theiragencies.)
 Fed. Std. No. 66D

corns

Para-
graph I%ge

1 WOE. *.00****** . *..**.**** ● **=**..**= ● ***0****= ● ****.=*** ...

4
2 CLU3SIFICATION AND DESIGNATION OF STEELS BY CHEMICAL
C(B4EWITION....0..0.......*.**.*.....................00*...C* 4
2.1 Classifi=tion ....................o.........000000o00obo 4
2.2 standardsteels.,........0 ***...*....*...*..**. .9..*** ● ● 4
2.3 Former standard s~els ..............................=ce. 4
2.4 Nonstandard steels...................................... 5
2.5 H-steels.,.. . .. . . . . . . . . . . . . . . . . . . .* .*.*
● ● ● . . . . . . . . ..*... 5
3 ..... .. ........ .,* **
VERIFICATIONOF CHEMICAL(IMPOSITION ● ● ● ● ● 5
3.1 Ninitions ............................................. 5
3.2 Sampling for cast or heat aMlySiS... = . . . . . . . . . . . ...=... 6
3.3 Reporting cast or heat analysis . . . . . . . ..-. =...-...= .~.== 6
3.4 ~liu for product analysis................go=w=geae.= 6
3.5 ‘folemnces for product malysis . . . . . . . . . ..=.=. ”.-”” W=OOC 6
4 CARBONSTEEL COMPOSITIONS . .................. ...........
● ● ● ● ● ●
6
4.1 ascription ............................................. 7
S12iINLESSAND HEAT-RISISTING STEEL CCMFQSITIONS.............. 10
: ALLOY STEEL CCMFOSITIONS .... ............*..0...... . . 00.
● ● ● ● ● ●
10
7 s’f4NDA.RD
H-STEELS
.. .0 . . . ● . . . . . . . . . . . . . . . .*...* . . . . ● ● . . ● O. ● ● 00 11
7.1 Identification . . . . . . . . . O*..
● . . . . .0. , . . . .** .
● ● ● ● ● . . . .0..0 11
7.2 Hardenability bands . . . . 0 . . . . . . . . . . .0 . .*
● ● ● ● ● ● ● ● ● ..... * ● ●
U

3
 —

Fed.”Std. No. 66D

FEDERAL STANDARD

STEEL: CHEMICAL COMPOSITION AND NARDENABILITY

10 SCOPE

This standard, as referenced in the applicable product specifications in

procurement documents, contains:

(a) A catalog of the standard carbon steels, alloy steels (including

E-steels), and stainless and heat-resisting steels that are designated by
chemical composition, or (for H-steels) by chemical composition and harden-
ability limits by reference to standard industry documents.

(b) Rules for designating the chemical content of carbon steels, alloy
steels, end stainless and heat-resisting steels that ● re not classified as
standard.

2. CLASSIFICATION AND DESIGNATION OF STEELSBY ~ICAL COMPOSITION

2.1 Classification. Chemical composition indicates only one aspect of a

steel product and is not to be considered as a complete guide to quality and
performance. Chemical composition, however, is the most consnonbasis for the
classification and designation of steels. The precise chemical content,
together with the desifed form (bar, sheet, strip, plate, etc.) and the size
(primarily cross-sectional area or diameter, will determine whether a given
product can be obtained simply by ordering a standard steel, or whether all
the requirements must be specified in detail.

2.2 Standard steels. Standard steels have specified compositions and are
limited to particular forms and sizes. These steels have individual numerical
designations assigned by industry to facilitate ordering, as sham in table 1.
The numbers are for identification and are not indicative of quality. The
steel numbers wed in this standard are generally Unified Numbering System
(UNS) numbers; corresponding American Iron and Steel Institute (AISI) numbers
and Society of Automotive Engineers (SAE) numbers are included for further
information.

In general, standard steels are used more often and are more readily avail-
able than other compositions.

2.3 Former standard steels. These steels were formerly listed as “standard
steels” in previous editions of this standard and the AISI manuals but,
because of decreased usage, they hve been placed in separate tables in the
referenced documents.

4
Fed. Std. No. 66D

2.4 Nonstandard steels. Nonstandard steels are steels which do not fall
into the category of standard steels because of differences In their composi-
tion. These unlisted steels must be ordered by specifying the chemical
content in accordance with established ranges and limits.

2.5 H-steels. A number of alloy steels, identified by the prefix or

suffix letter “H” to the steel number, may be designated by a combination of
hardenability and composition. The hardenability data compiled for each of
these steels, have been derived from extensive standard (Jominy) endquench
hardenabllity testing, and have been incorporated into composite graphs.
Each graph has two curves, plotted from the maximum and minimum hardness
values reported for l/l&inch distances from the quenched end of a standard
one-inch df,~ter specimen. The band created by these two curves defines the
hardness limits for that composition. Hardenability bands and directions for
their use i.nspecifying E-steels are explained in ‘7.2.

2.5.1 Chemical composition limits. The chemical composition limits of the

H-steels have been modified so~what from the ranges or limits applicable to
the same grades when specified by chemical composition only so that steel
producers will be able to meet a common standard of hardenability limits.
The modifications permit adjustments in manufacturing range of chemical
composition to correct for individual plant meltlng characteristics which
might othetise influence the levels and widths of the hardenability bands.
The modifications are not great enough to influence the general character-
istics of the original compositions of the series under consideration.

3. VERIFICATIONOF CHR41CAL COMPOSITION

3.1 Definitions.

3.11 Cast or heat analysis. Cast or heat analysis is the determination

of the chemical composition of a melt, blow, or heat of steel as represented
by samples obtained from the first part or middle part of the heat during
pouring of the steel from a ladle. This analysis is representative of the
product of a heat of steel as delivered and as reported to the purchaser.

3.1.2 Product analysis. Product analysis is a chemical analysis of steel

in the semifinished or finished product form. The steel can be subjected to
product analysis by the purchaser either for the purpose of verifying that the
chemical composition is within specified limits for each element, includlng
applicable tolerance for product analysis, or to determ.lnevariation in
composition within a heat or lot; it is not used to confirm previous results.
The results of analyses representing different locations in the same piece or
taken from different pieces of a heat or lot may differ, within permissible
limits, from each other and from the cast or heat analysis.

5
 ——._.——..

Fed. Std. No. 66D

3.1.3 A ‘melt?~of steel is the metallic output of one charge of an electric

furnace.

3.1.4 A “heat” is the metallic output of one furnace charge in the open
hearth or the basic oxygen process.

3.1.4 A “blow” is the metallic output of one furnace charge in the bessemer
process.

~ 3*2 ~. u~ess otherwise Specified in

the contract or order, sampling procedures for cast or heat analysis will be
in accordance with stand~ industry practice. Usually, at least three
samples are taken representing the first, middle, and last portions of the
heat. Drillings taken from the first sqle or middle samplqare used in
determining cast or heat unalysls. fie””adtition~ samples are used for
stu%ey of unifomity and for control purposes.

3.3 ~ cast 0r heat -siq. The chemical composition specified

for cast or heat analysis is shown by percentages of the elements, erpressed
as minimum or maximum limits or as ranges. With the exception of phosphorus
and sulfur, all elements are reported to two decimals. ~osphorus and sulfur,
up to 0.060 percent inclusive, are usually reported to three decimals; above
0.060 percent they are usually reported to two decimals. Values are ~rmally
rounded off to the nearest hundredth percent.
.
3.4 in~ for DrOdU ct analvs~ . In sampling for product analysis,
each heat of steel in a lot is considered separately unless otherwise speci-
fied. The nwiber of samples selected for analysis is usually indicated by
the applicable product specification. Because of segregation, the location
at which samples for product analysis are obtained is important. Product
analysis must be performed on steel in the condition received from the p-
ducer because steel subjected to subsequent heating operations may not yield
a-~lytical results that correctly represent the original composition. The de.
tafied procedures for obtaining product analysis chips or drillings (samples)
for various forms and sizes of the product are shown in table 2.

3.5 ~ces formodu ct ~ Individual determinations may vary

●

from the specified limits or ranges to the extent shown in the applicable
product analysis tables, but the several determinations of any element in a
heat may not va~ both ,aboveand below the specified range.

&cause of a characteristic lack of uniformity, no product analysis is

ordinarily required for carbon, phosphorus, ad sulfur in rimmed or capped
steels, nor for phosphorus and sulfur in rephosphorized or resulphurized
steels, unless misapplication (error in identification) is clearly indicated.

4. CAREON STEEL COMFUSITIONS

6
Fed. Std. No. 66D

4.1 Description. The chemical composition, ranges and limits, and

product analysis tolerances for carbon steels are covered in tables contained
in the Steel Products Manual published by the American Iron and Steel Insti-
tute (AISI). The applicable sections of the Manual,”coverf.ngthe available
forms, are as follows:

(a) Carbon Steel Strip

(b) Carbon Sheet Steel (Coils and Cut Lengths)

(c) Wire and Rods, Carbon Steel

(d) Carbon Steel: Plates; Structural Shapes; Rolled Floor Plates;

Steel Sheet Piling

(e) Carbon Steel: Semifinished for Forging; Hot Rolled and Cold Finished
Bars; Hot Rolled Deformed Concrete Reinforcing Bars

(f) Steel Specialty Tubular Products

4.1.1 Bars, semifinished products, wire rods, wire, and seamless tubin~.
Standard carbon steels are available as bars, and as semifinished products
(blooms, billets , and slabs) for forging. Standard carbon steels are also
available as wire rods, wire, and seamless tubing. In addition, a small
number of carbon steels have been developed exclusively for both seamless
and welded tubing.

4.1.2 Plates, sheet, strip, structural shapes, and welded tubing. Chemical
composition for carbon steel plates, sheet, strip, structural shapes, and
welded tubfng are ordered by one of two methods:

(a) The steel may be designated as one of the standard SAEnonresul-

phurized carbon steels developed exclusively for these forms.

(b) The chemical content may be ordered in accordance with applicable

AIS1 ranges and limlts. lb

The standard SAE nonresulphurized carbon steels for plates, sheet, strip,
shapes, and welded tubing are identified by the same four-digit numbers used
to identify the standard AISI-SAE steels for bars, semifinished products,
wire rods, wire, and seamless tubing. However, comparable compositions from
both groups are not identical despite identification numbers; they differ in
the range of content shown for particular elements (usually carbon). There-
fore, in ordering, specify the identification number, the form desired
(sheet, strip, etc.), and the prefix designation “WE”.

7
 SeriBo dcalsratioa

I
chMflaAtioo -=9*
m NSI MS

Wpte Ololx up to lalj up to 10U

Ololp to Gm220, iotl. lolj w 1022, id. 10I3 ta lIE, *1.
tir 010220to U0410, 1081. Owr 10?2 w MU, inal. or.? 1022to Ku, lml.
Oru Omlo Omr 10U Ove lql
GMao to GM520, Ird. 1524ta 1552,IOd. 1524w 1552,iosl.
.
— lbl llx
— la llxx

m
3*

s=- 4*
47X
GS6xu S6xx
WmIa

l--
CMxxa Oe&l
— 9mY
— 9axa
lliukd-mlyMmum G@xxx @n @xx
GwSx= 41k 4UU

- 50U

L
(turiw) Iau
ikditm(baring)
IIigb
(bearing) 521xa

M-nrmdllw dlaa
slliooo-DngmsBo 9* 92X.X

Stainhm
F Atuteaitle (rlrIa-
G5@xa * WkX,
—
1*1. Xr.Bu
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XaDaa
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ad bmfio!wbio )
bmt-r+ alrOEi-nlckel-
dsting mnpwm a 202xl
●tih mmmi-nickel 3= 303U

s4xx#e?taia
dwigmtiom 4xl Wn
1

dwigmtima
S4x.ua (cm’tain ~ ‘ m 51&x”

5MU

.-
 -* ~
Slm see tioml ar.a , dhnt.rr, lm.
bra dmrmtwlmlca oq. im. (q. cm.) (d (Wmx.)
mm, rude Ibt owr 0.7>
quww , (4.*)
tuxhgolu
, Bhtpo,
hr-sised●hlp.# ;
ti2 (12.7}
fist bra
light

Blooms, bllhte., Large ●ectlons

I.zu.x
l.n (12.7)
slabs, rourd,
.quar*s, slups
I bar 16.0 (1OJ.2) 1 (25.4)
I
mitaida ad Ua8r.w
To 16.0 (10].2) V2 (12.7)
Owr 16.0 (103.2) 1 (21.4)
Ihiebonm up to -
2 imlwa (Ye. b)
Yhiakucm m (22.7)
2 iooks and-oikr
(lo.k) 1 (25.4)
kt of * lull U2 (22.7)
#i* rnlhd ( out)
:romlmrgor 1 (25.4)
#lm*ta)

l/2 (12.7)

r
ShLmt,●trip Qkd l.or@-
Wimlly I

shot, strip Rolled trt- 1 (25.4)

versely

Shnt rolled tnom- l/2 (12.7)

Vernly ; 0.0%
iorh (0.9&m) 1 (25.4)
or 10ss
nhllm pmducti k+ 16.0 (103.2) l/2 (12.7)
tier 16.0 (103.2) 1 (25.4)

Wtn rcdn●d wire - Chip droll bo taken by milliwor nbhioim

tb full cross smtion of the wireor tim

.
Fed. Std. No. 66D

A B c
FIcuac1. Drill locations for obtaining product analysis
saIEplcs
.

5. STAINLESS AND HEAT-RESISTING STEEL COHPOSIT’IONS

5.1 Forms. Stainless and heat-resisting steels specified by composition

are ordered as standard steels and are available as bars, as semifinished
products (blooms, billets, and slabs) 4 inches square or larger, and as
plates, shapes, sheet, strip, and wire.

5.2 Description. The chemical composition and product analysis tolerances

for stainless and heat-resisting steels are covered in tables contained in
the Steel Products Manual published by AISI. The applicable section of the
Manual is titled Stainless and Heat Resisting Steels.

6. ALLOY STEEL COMPOSITIONS

6.1 FO~S. Standard alloy steels, ordered by identification number, are

available as bars, billets, blooms, and slabs. They are generally also avail-
able as shapes, sheet, strip, wire, and seamless tubing. Some producers may
not furnish standard alloy steels in all of these forms, or they may accept
orders only if based on specifying such forms as “other-than-standard” steels.

6.2 Description. The chemical composition, ranges and limits, and product
analysis tolerances for alloy steels are covered in tables contained in the
Steel Products Manual published by AISI. The applicable sections of the
Manual, covering the available forms, are as follows:

(a) Alloy Steel Sheets and Strip

(b) Wire and Rods, Alloy Steel

6.3 Unlisted alloy steels. Unlisted alloy steels include: ..

(a) Semifinished products (blooms, billets, and slabs) that exceed 200
square inches in cross-sectional area.

10
 Fed. Std. No. 66D

(b) Basic forms (bars, semifinished products, plates, shapes, sheet,

strip, wire, and seamless tubing) ordered in compositions that are not
standard, i.e. the percentages of some of the elements are outside of the
chemical composition ranges shown in the tables for standard alloy steels.

7. STANDARD H-STEELS .
7.1 Identification. H-steels are comprised of standard steels manufactured
to fine-grain steel practices and available as bars, billets, blooms, and
slabs, or seamless tubing. These steels are ordered by identification numbers
including the prefix or suffix letter “H” as well as by hardenability limits
selected In accordance with 7.2. Chemical composition for other sizes and
forms, as well as hardenability limits for coarse-grain steels must be nego-
tiated between the procuring agency and the contractor. The chemical composi-
tionsof standard E-steels are covered in Volume I of the SAEll~dbook published
by the Society of Automotive Engineers (SAE) and in the following sections of
the Steel Products Manual published by AISI:

(a) Wire and Rod, Alloy Steel

(b) Alloy Steel: Semifinished; Hot Rolled and Cold Finished Bars

7.2 Hardenability bands. Typical hardenabf.lityband limits are shown

graphically and as tabulations in Figure 2. In graphic form, the horizontal
coordinate represents the distance from the quenched end of the standard
(Jominy one-inch, end-quench hardenability) test bar, while the vertical
coordinate represents the Rockwell “C” hardness values derived from the test
data. In tabular form, one column represents the distance away from the
quenched end of the standard test bar, while two other columns indicate the
minimum and maximum Rockwell “C” hardness values for each distance.

Hardenability band limits for all H-steels are contained in Volume 1 of

the SAE Handbook published by SAE and in the following sections of.the Steel
Products Manual published by AISI:

(a) Wire and Rod, Nloy Steel

(b) Alloy Steel: Semifinished; Hot Rolled and Cold Finished Bars.

The graphs are used for estimating the hardness values obtainable at
various deptha, and also for comparing hardenability. To ensure accuracy and
uniformity, the tabular values are used for specifying hardenability limits.

Hardenability limits are specified as a range; hence two or more values are
selected to designate the desired hardenability. The preferable method is to
designate only two values from the hardenability table. There are four methods
of designating the two values, depending on known design requirements. Figure
2 illustrates each of the four methods of designating hardenability.

11
Fed. Std. Nol 66D

In cases where it is necessary to specify more than two points on the

hardenability band (exclusive of the maximum and mf.nimumlimits at a distance
‘of 1/16 in.), a tolerance of two points Rockwell *’C”over any small portion
of either curve (except at a distance of 1/16 in.) is customary. This toler-
ance is necessary because tunes of individual heats vary somethat in shape
from the standard band limits and thus deviate slightly at one or more posi-
tions in the full length of the curves. This method, however, may result in
procurement difficulties and higher costs because of the additional problems
in producing heats of H-steel so that all hardness values will fall within the
standard band.

When an E-steel is specified, the contractor will report to the procuring

agency the herdenebility characteristics of each heat of steel supplied. The
hardanabllity will be shown by hardness values at the specified reference
points. Wwever, if the full H-band la specified, hardness values will be
shown at the following distances from the quenched end of a standard test
specimen: 1/16, 1/8, 1/4, 1/2, 3/4, 1, 1-1/4, 1-1/2, 1-3/4, and 2 inches.
Values below 20 Rochell “C” are not specified because such values are below
the normal range of the “C” scale. The hardenability will be detemlned from
either a cast, rolled, or forged bar tested in accordance with the end-quench
hardenability test described in ASTM A255, End-Quench Test for Hardenebility
.of Steel.

12
.

Fed. Std. No. 66D

HA12DENABLITY BAND H86300

I c I Mn I Si I Ni I Cr I NO
I
I .27/33 I .60/.95I .20/.35I .35/.751.W.6S I .15/.25 I
.-

66

80

66

60

4s

40
1 [ 1 1 1 1 1 , 1 I

1
1 I 1 1 1 1 1 1
1 1 1 ,
36
w #
1 1 1
I
1
[
1
[
I
1
1 1
r
1
1
1
1

30

26 I r I 1– 1 r I 1 —[T-– 1 1 I I 1 i I [ 1 1
1 1 I ~1- 1 1 1 I 1 1 1 [ t 1 1 [ 1 1 1 1 1 r I

20

16
rl ! r 1 I 1 1 — 1 1 I 1 1 J 1 1 1 1 m 1 1 1
c 1 L I 1 1 B 1 1 I 1 1 I
! 1 1 1 [ 1 1 1 ! 1 I 1 1 1 1 1 + I 1 1
90

1 1 1 1 t 1 t- S , ,
6t
2 4 6 a 10 12 Id 16 la 20 22 24 28 20 30 aa
DISTANCE FROM QUENCHED END OF SPECIMEN - SIXTEENTHS

Method Example

A—M$tmain:and maximum hardnens vBluea st ● desired A-A—J43/54 -% in.

B-B-J39 =‘~ in. to ~ in.

B-A ~d~krdneaa value st minimum snd maximum (Minimum distance to nearest % in. ●t left and
maximum to nearest % in. at right).

C-TWo maximum hardn- valuea at tw’odesireddistwmea. C-C—J50-% in. max.

J34-l% in. max.
D-Two minimum hardnes value at two desireddistmmes.
D-D-J35= 54 in. min.
J21- I’??in. min.

FIGURE 2. Examplesillustrating
alternM,e methods of specifying requirements.
(Tabulated hardness values wed in ordering).

13
 Fed. Std. No. 66D

MILITARYCUSTODIANS: Preparing activit~:

Anuy-MR Amy-m
Navy - SH
Air Force - 11 CIVIL AGENCIES INTEREST:

Review activities: JFK

FPI
Army -MI,MR NBs
Navy - AS, YD Pss
DSA - IS HNE

User activities:

Amy- AT, AR, NE

Navy - SA

14
--
 INSTRUCTIONS:Inm cootinuiDg
effort
to* ourstsdudhtiondocuments
bettmr,
tbeDoDPwTMEs tbiBformfoEaEE&n
aubudtting commeotE aud ~= for impmwemeok W wrs Of titu’y ~tion documents UE illdtd to protids

so= m fOTLUI-Y be -edi foddedabnfJ the Iinee iwikatod, taped alomEtbe la edge (DO NOT STXPLE), sad
lrmiled. In block qbeuspdf’kupo dbhdxmt pErtkuk problem uoEs Eucbu word@ WMchrwmh’edbt erpmtstkxhwm
too rigid,rectrictivo,
looee,unb~w orm incompatible, andgin Pmpooed wording Asngee whieb wouldellevhte
the
pobleuu.Enter inblock6 SBYrtmsrkE notrelated toa cpecifii paragraph oftbedomuoe !lt.xfbkwk7i
9filkdout,M
acknowledgement willbe mailed to you within 90 days to let you know that your commentE was rux&edandEM being
considered.

NOTE: ‘I%u form may not be used to request

wpi- of documenb, nor to request m Ck!vbtions, or C12rifiiation of
specifkation requirementJ on cux?ent contracts. Comments subndtted on this form do not constitute or imply ●uthorization
to waive anY portion of ,tie referenced document(s) or to amend contractual
requirements.
*e

.=
—7 -----

(Pdd w thI# Une)

DEPARTMENT OF THE ARMY

111111 NO POSTA~E
NECmRY
IF MAILED
IN TME
UNITED STATES

OFFICIAL BUSINE~
PENALTY FOR PRIVATE USE S300 BUSINESS REPLY MAIL
‘FIRST CLASS PERMIT NO. 120S2 WASHINGTON O. C.

POSTAGE WILL BE PAID BY THE DEPARTMENT OF THE ARMY

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