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About This Item

 

Full Description

Specifies classification, design, interchangeability dimensions with tolerances, finish, marking requirements for coupling body for 50 mm towballs, which are used for the towing of caravans, very light and light trailers of up to 3.5 t in tension and compression, transverse thrust and pull-out forces. A static strength test and a dynamic test are also described in the appendices.
 

Document History

  1. AS 4177.3-2004


    Caravan and light trailer towing components, Part 3: Coupling body for ball couplings

    • Most Recent
  2. AS 4177.3-1994

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    Caravan and light trailer towing components - Coupling body for ball couplings

    • Historical Version
  3. AS D18-1968


    Ball couplings (for automotive purposes)

    • Historical Version
 

Amendments, rulings, supplements, and errata

  1. AS 4177.3-1994 AMDT 1


    Caravan and light trailer towing components - Coupling body for ball couplings