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Homepage>BS Standards>43 ROAD VEHICLE ENGINEERING>43.040 Road vehicle systems>43.040.70 Couplings>BS AU 2a:1970 Specification for dimensions of 3½ - 4½ in diameter fifth wheel king pin for use with extra heavy duty semi-trailers
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immediate downloadReleased: 1970-08-28
BS AU 2a:1970 Specification for dimensions of 3½ - 4½ in diameter fifth wheel king pin for use with extra heavy duty semi-trailers

BS AU 2a:1970

Specification for dimensions of 3½ - 4½ in diameter fifth wheel king pin for use with extra heavy duty semi-trailers

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Standard number:BS AU 2a:1970
Pages:6
Released:1970-08-28
ISBN:0 580 06023 3
Status:Standard
DESCRIPTION

BS AU 2a:1970


This standard BS AU 2a:1970 Specification for dimensions of 3½ - 4½ in diameter fifth wheel king pin for use with extra heavy duty semi-trailers is classified in these ICS categories:
  • 43.080.10 Trucks and trailers
  • 43.040.70 Couplings

This British Standard specifies dimensions for a 3½ – 4½ in diameter king pin for fifth wheel attachment to semi-trailers for extra heavy duty.

NOTE 1 A fifth wheel king pin for attachment to semi-trailers for normal and heavy duty is covered in BS AU 1, “Dimensions of 2 – 2⅞ in diameter fifth wheel king pin for use with semi-trailers”. The clearance dimensions and fifth wheel positions are given in BS AU 3, “Clearance dimensions and fifth wheel positions for tractors and semi-trailers”.

NOTE 2 The values specified in imperial units are to be regarded as the standard.