5310-01-020-4676, WASHER,FLAT

National Stock Number:
5310-01-020-4676

Federal Supply Class:
5310

National Item Identification Number:
010204676

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:

S8157A54-020A	59364	HONEYWELL INTERNATIONAL INC.
S8157A54-020A	99193	HONEYWELL INTERNATIONAL INC.

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
OVERALL DIAMETER	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/1 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-250/2 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL
PERIPHERAL SHAPE STYLE	ROUND
SPECIFICATION/STANDARD DATA	70210-S8157 MANUFACTURERS STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE OR CHROMATE OVERALL
THICKNESS	0.020 INCHES NOMINAL

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