5310-01-162-7910 WASHER,FLAT Index 5310-01-162-7913 WASHER,FLAT

National Stock Number:
5310-01-162-7912

Federal Supply Class:
5310

National Item Identification Number:
011627912

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
115623037X677GENERAL MOTORS LLC
172705911862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
17270597X677GENERAL MOTORS LLC
50028706K0407BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED
50028706U07Z1BAES GCS TERRIER SSC 3 PROJECT
8C056611083CATERPILLAR INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
OVERALL DIAMETER24.8 MILLIMETERS MINIMUM AND 25.4 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1055 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONGM 4342M CODE 20 U32,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OR GM 4342M CODE 20M U32,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC OVERALL
THICKNESS2.35 MILLIMETERS MINIMUM AND 2.70 MILLIMETERS MAXIMUM


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