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ISO 337:1981

Road vehicles — 50 semi-trailer fifth wheel coupling pin — Basic and mounting/interchangeability dimensions

Standard Details

This second edition cancels and replaces the first edition (1973). Specifies the dimensions of the 50 coupling pin /dia. 50,8 mm (2 in)/ which is used for coupling semi-trailers to prime movers, taking into account the limitations of weight generally laid down by official requirements. Some figures illustrate shapes and the difference of types.

General Information

Status : Published
Standard Type: Main
Document No: ISO 337:1981
Document Year: 1981
Pages: 2
Edition: 2
  • Section Volume:
  • ISO/TC 22/SC 40. Specific aspects for light and heavy commercial vehicles, busses and trailers

Life Cycle

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ISO 337:1981

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