5310-01-064-4089, WASHER,FLAT

National Stock Number:
5310-01-064-4089

Federal Supply Class:
5310

National Item Identification Number:
010644089

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:

GW10U41AA34

26512

NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM
OVERALL DIAMETER	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/3 T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	ALUMINUM ALLOY 2014 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 TY 2 CL 1 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 CL 1A MIL SPEC 2ND TREATMENT RESPONSE OR MIL-P-23377 MIL SPEC 3RD TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE OR CHROMATE OR PRIMER OVERALL
THICKNESS	0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM

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