BS AU 001c-1989 (2000) ISO 337-1981
BS AU 001c-1989 (2000) ISO 337-1981
BS AU 001c-1989 (2000) ISO 337-1981
Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 05: 09 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI
Specification for
Ministry of Defence
Contents
Page
National foreword ii
2 Reference 1
and interchangeability 2
Figure 1 1
Figure 2 2
Figure 3 2
© BSI 02 - 2 000 i
BS AU 1 c:1 989
Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 05: 09 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI
National foreword
This revision of BS AU 1 has been prepared under the direction of the Automobile
Standards Committee and is identical with ISO 337: 1 981 “Road vehicles — 50
semi- trailer fifth wheel coupling pin — Basic and mounting/interchangeability
The comma has been used as a decimal marker. In British Standards it is current
practice to use a full point on the baseline as the decimal marker.
A British Standard does not purport to include all the necessary provisions of a
contract. Users of British Standards are responsible for their correct application.
Summary of pages
This document comprises a front cover, an inside front cover, pages i and ii,
pages 1 and 2, an inside back cover and a back cover.
This standard has been updated (see copyright date) and may have had
amendments incorporated. This will be indicated in the amendment table on the
inside front cover.
NOTE If, for extra heavy- duty vehicles, this coupling pin is not sufficient, an 90 [ Ì 89 mm (3. 5 in) ] fifth wheel coupling pin according
to ISO 4086 shall be used.
In addition, this International Standard specifies the dimensional characteristics necessary for mounting
and interchangeability.
2 Reference
ISO 4086, Road vehicles — 90 semi- trailer fifth wheel coupling pin — Basic and
mounting/interchangeability dimensions.
Figure 1
0 0
*The dimensions 1 09 –0, 5 (Type A) and 1 39 –0, 1 (Type B) correspond to the pin dimensions.
0
**The dimensions 25, 5 ± 0, 5 (Type A) and 60 –0, 5 (Type B) are to be checked before mounting a new part.
0
***The dimension 84 –1 , 5 (Types A and B) is a control dimension for built- in new pin (i. e. to be checked after mounting) .
Figure 3
Publications referred to
BS AU 1c:1989
BS AU
Li cen sed Copy: Lon d on Sou th Ban k U n i versi ty, Lon d on Sou th Ban k U n i versi ty, Sat Dec 09 02: 05: 09 G M T+00: 00 2006, U n con trol l ed Copy, (c) BSI
1c:1989
ISO 337:1981 BSI — British Standards Institution
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