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SAE AIR1936

Revision A, March 1, 1997

Complete Document

Study of Wrenching Engagement on AS870C Double Hexagon (12 Point) Fasteners

Includes all amendments and changes through Reaffirmation Notice , November 2012


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Product Details:

  • Revision: Revision A, March 1, 1997
  • Published Date: November 2012
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 16
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This study addresses the adequacy of sockets, wrenches, and torque adapters conforming to AS954 to wrench 12 point fasteners with wrenching configurations conforming to AS870C. Reported wrenching problems with smaller sizes are investigated through examining the combined tolerances on the fasteners and wrenches, conducting torque testing on typical high strength lock nuts. Possible solutions to correct these wrenching problems are presented.
AIA/NAS Aerospace Standards