5310-00-188-7721, WASHER,FLAT

National Stock Number:
5310-00-188-7721

Federal Supply Class:
5310

National Item Identification Number:
001887721

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:

004-003081-020	26916	NORTHROP GRUMMAN SYSTEMS CORPORATION
101857-29	37695	RAYTHEON COMPANY
10196461	A486G	NIMIKKEISTOKESKUS NCB FINLAND
8485395	18876	U S ARMY AVIATION AND MISSILE COMMAND
AN960PD6	88044	AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FFW92TYPEAGRADE1CLASSD	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
VIT0N 3&8ID	06090	TE CONNECTIVITY CORPORATION
VITON 3&8ID	06090	TE CONNECTIVITY CORPORATION

Techincal Specification:

CENTER HOLE SHAPE STYLE	ROUND
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
HOLE DIAMETER	0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM
OVERALL DIAMETER	0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	ALUMINUM ALLOY 2024 OVERALL
NONDEFINITIVE SPEC/STD DATA	A TYPE AND 1 GRADE AND D CLASS
PERIPHERAL SHAPE STYLE	ROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CHROMATE OR ANODIZE OVERALL
THICKNESS	0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM

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