5310-00-882-7121, WASHER,FLAT

National Stock Number:
5310-00-882-7121

Federal Supply Class:
5310

National Item Identification Number:
008827121

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:

10908633	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
5310008827121	SCY13	E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE

Techincal Specification:

MATERIAL	STEEL COMP MT1010 OR
	STEEL COMP MT1015 OR
	STEEL COMP MT1020 OR
	STEEL COMP MTX1015 OR
	STEEL COMP MTX1020 OR
	STEEL COMP 1020 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-T-830 FED SPEC 1ST MATERIAL RESPONSE AND
	QQ-T-830 FED SPEC 2ND MATERIAL RESPONSE AND
	QQ-T-830 FED SPEC 3RD MATERIAL RESPONSE AND
	QQ-T-830 FED SPEC 4TH MATERIAL RESPONSE AND
	QQ-T-830 FED SPEC 5TH MATERIAL RESPONSE AND
	QQ-S-698 FED SPEC 6TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-16232,TY M,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	1.260 INCHES NOMINAL
PERIPHERAL SHAPE STYLE	ROUND
OVERALL DIAMETER	1.880 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
THICKNESS	0.095 INCHES MINIMUM AND
	0.105 INCHES MAXIMUM
HARDNESS RATING	89.3 ROCKWELL SUPERFICIAL 15-N MINIMUM AND
	92.2 ROCKWELL SUPERFICIAL 15-N MAXIMUM
SURFACE FINISH	63.0 MICROINCHES TOP
	63.0 MICROINCHES BOTTOM
FEATURES PROVIDED	CASEHARDENED
HEAT TREATMENT	QUENCHED AND
	TEMPERED
THE MANUFACTURERS DATA
MANUFACTURERS CODE	19207
DESIGN CONTROL REFERENCE	10908633

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