5310-01-286-6074 WASHER,FLAT Index 5310-01-286-6076 WASHER,FLAT

National Stock Number:
5310-01-286-6075

Federal Supply Class:
5310

National Item Identification Number:
012866075

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:
1151151611862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
1151151624617GENERAL MOTORS CORP
115115167X677GENERAL MOTORS LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
MATERIAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER19.5 MILLIMETERS MINIMUM AND 20.0 MILLIMETERS MAXIMUM
SURFACE TREATMENTOIL OVERALL
THICKNESS2.0 MILLIMETERS MINIMUM AND 2.8 MILLIMETERS MAXIMUM


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