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9986244

2nd Edition, March 1, 2014

Complete Document

Dry Film Lubricant for Fastener Applications

Includes all amendments and changes through Inactive for New Design Notice 4, March 2014


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Superseded By: 9986167

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ENGLISH * INACTIVE FOR NEW DESIGN * USE 9986167
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Product Details:

  • Revision: 2nd Edition, March 1, 2014
  • Published Date: March 2014
  • Status: Superseded By:
  • Superseded By: 9986167
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 2
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification describe the basic requirements of a dry film lubricant coating to be used on fasteners to provide low and consistent prevailing drive torque during assembly.

Material Description. The material to this specification covers thermosetting resin bonded dry film lubricant coating. This coating process does not generate hydrogen, however, pretreatment processes i.e., acid pickling could cause hydrogen absorption. Parts with specified hardness HRC 39 and higher shall not be acid cleaned.

Typical Application. Typically used on stainless steel exhaust system studs and buts. If applied to carbon / alloy steel fasteners, this coating should be used in conjunction with a Zn phosphate pre-treatment, GMW3179 Code D.