5310-01-387-3073, WASHER,FLAT

National Stock Number:
5310-01-387-3073

Federal Supply Class:
5310

National Item Identification Number:
013873073

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:

03A118-8A	10630	ANILLO INDUSTRIES LLC
03A118-8A	1W025	NORTHROP GRUMMAN SYSTEMS CORP
03A118-8A	56878	SPS TECHNOLOGIES, LLC
03A118-8A	58009	MOELLER MANUFACTURING & SUPPLY, LLC
03A118-8A	70265	ALL POWER MANUFACTURING CO.
03A118-8A	73197	HI-SHEAR CORPORATION
03A118-8A	76823	NORTHROP GRUMMAN SYSTEMS CORPORATION
03A118-8A	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
03A118-8A	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC

Techincal Specification:

MATERIAL	TITANIUM ALLOY UNS R56400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 4911 ASSN STD SINGLE MATERIAL RESPONSE OR
	AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.250 INCHES MINIMUM AND
	0.253 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE	ROUND
OVERALL DIAMETER	0.498 INCHES MINIMUM AND
	0.502 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
THICKNESS	0.063 INCHES NOMINAL

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