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3rd Edition, May 1, 2014

Complete Document

Low Permeability Fuel Filler Hoses, Moderate Temperature

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

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Product Details
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Detail Summary

Superseded By: GMW15349

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Product Details:

  • Revision: 3rd Edition, May 1, 2014
  • Published Date: May 2014
  • Status: Superseded By:
  • Superseded By: GMW15349
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 5
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This specification covers three types of hose 12.7 mm diameter and larger, coupled and uncoupled, for use with gasoline, oil, or diesel fuel in automotive fuel systems. This hose is less permeable than GM5195M, and has a lower maximum temperature limit than GM6196M, GM5272M, and GM6289M. The maximum temperature limit for this hose is 100 C.

Material Description.

Material Identification.

Construction. The tubing shall consist of a smoothbore compound. The cover shall consist of a blend of polyvinyl chloride (PVC) and butadiene/acrylonlfrille (NBR) copolymer compound. The cover may be perforated to facilitate degassing during manufacturing operations. Hose shall be black. The tube shall be reinforced with a yarn or cord applied by braiding, knitting, or circular weaving or of two poly counter directional helical winding. Three (3) types of fiber reinforcement are permitted as described:

GM5401M, Type A, refers to hose reinforcement with aramid fiber.

GM5401M, Type B, refers to hose reinforced with rayon fiber.

GM5401M, Type C, refers to hose reinforced with polyester and nylon. Reinforcement must consist of polyester and nylon in a knit wrap construction with alternating loops of polyester and nylon. Nylon must be looped through polyester.

Hose Marking. The hose shall be legibly marked with the following information in the sequence stated: Nominal inside diameter expressed as fraction of an inch (Ex: 1-1/4), GM specification number GM6401M, Type A, B, or C, data code, manufacturer's code identification as designated by Rubber Manufacturers Association, and the manufacturing plaint location code. Such marking shall be printed parallel to the aids in vivid white or light blue block letters not less than 3 mm high and the open space between the specified markings shall not exceed 25 mm.

The date code shall consist of six digits: the first two digits shall represent the month (01 through 12) of the year, the next two shall represent the day of the month (01 through 31), and the last two shall be the last two digits of the year.

Additionally, one or more colored tracers shall be incorporated into the wall of the hose identifying the hose manufacturer. The color(s) shall be as designated by the Rubber Manufacturers Association.

Parts conforming to this specification which are two short for the marking required in shall be marked as specified by the purchaser's engineering department.

Dimensions and Tolerance. Hose furnished to this specification shall conform to the dimensions and tolerances shown in Table 1 for the size (nominal inside diameter) specified by the purchaser (conforms to SAE J30 Table 7 [SAE J30R7]).

Note: Hose cover wall thickness shall be between 25 and 40 % of total wall thickness.

Note: Concentricity based on total indicator reading between inside bone of hose and outer surface of hose shall not exceed value given below:

Sizes 12.7 mm and over . . . . . . . . . . . . 1.3mm

Note: Wall gage for sizes 31.75 through 44.45 mm shall be between 4.3 and 5.6 mm and for sizes 50.80 through 63.5 mm between 4.3 and 6.4 mm.

Cross-Reference or Replaced Specifications. Subparagraphs were not applicable.

Symbol. Not applicable.

Typical Application. Not applicable.

Remarks. Not applicable.