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GM6268M

4th Edition, May 1, 2014

Complete Document

O-Ring Requirements for Fuel Line Quick Connects

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


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Superseded By: GMW14754

EN
Additional Comments:
ENGLISH * INACTIVE FOR NEW DESIGN * USE GMW14754
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Referenced Items:

GM6163M
GM6264M
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Product Details:

  • Revision: 4th Edition, May 1, 2014
  • Published Date: May 2014
  • Status: Superseded By:
  • Superseded By: GMW14754
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 4
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification describes o-ring materials intended for nylon or other fuel line quick connect fittings used in conventional gasoline fuel systems where exposure to alcohol concentrations on an intermittent basis with gasoline are anticipated. For quick connect o-ring with upgraded alcohol resistance see GM5269M. Because a variety of material compounds can satisfy the functional requirements, the approved materials are classified by type. Material approvals to this specification cannot be transferred for any other end use applications.

Material description. This specification covers four types of elastomeric seals. The seals are differentiated based on chemistry and performance.

Type I: Fluorosillcone (FVMQ)/ Fluorocarbon (FKM) Blend, Inner o-ring.

SAE J200M4HK 707 or 807 Z1 through Z11

Type II: Fluorosillcone (FVMQ), outer o-ring.

SAE J200M4HK 707 or 807 Z1 through Z11

Type III: Fluorocarbon (FKM containing 70 wt% Fluorine), Inner o-ring,

SAE J200M2HK 810 Z1 through Z11

Type IV: Low durometer Fluorocarbon (FKM containing 70 wt% Fluorine), Inner o-ring.

SAE J200M2HK 610 Z1 through Z11

Note: Straight flrorosillcone, Type II is more flexible at low temperature, has Improved alcohol resistance and lower compression set than the blended, Type I materials. Type II material is used in areas that require better sealing at low temperatures.

Note: Type III is an alternative to Type I for the Inner o-ring. Type IV is an alternative to Type III where a softer, lower-duromerer o-ring is required.