The Purchase and Acceptance of Type H-Tightlock Couplers
This recommended practice covers material, purchase and acceptance requirements for Type H Tightlock coupler systems and their parts.
|Document Number||Version||Publication Date||Publication||Related Information|
|APTA PR-M-RP-003-98||Rev. 2||09/17/2020||Published||Current|
|APTA PR-M-RP-003-98||Rev. 1||01/22/1998||Published||Superseded|
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- All inquiries regarding gaging should be directed to the Mechanical Committee of Standard Coupler Manufacturers. They can be reached by contacting the Railway Supply Institute.