5310-00-205-7259, WASHER,FLAT

National Stock Number:
5310-00-205-7259

Federal Supply Class:
5310

National Item Identification Number:
002057259

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:

6740962	24617	GENERAL MOTORS CORP
6740962	51226	ASSOCIATED AEROSPACE ACTIVITIES INC
9039081-1	24617	GENERAL MOTORS CORP
6740962	73342	ALLISON TRANSMISSION INC

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.404 INCHES MINIMUM AND 0.413 INCHES MAXIMUM
OVERALL DIAMETER	0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5080 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 1035 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SPECIAL FEATURES	OUTER PERIPHERY OF ONE BEARING SURFACE IS BEVELLED 0.656 IN. DIA OF SMALL BEARING SURFACE 0.078 IN. DEPTH OF UNBEVELLED PORTION OF THK
SURFACE FINISH	63.0 MICROINCHES ALL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THICKNESS	0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM

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