National Item Identification Number

00-789-0961

National Stock Number

Item Name

WASHER,FLAT

Federal Supply Class

5310

Description

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.

Commercial and Government Entity Code (Supplier Data)

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02978

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L-3 COMMUNICATIONS CORPORATION
DBA COMBAT PROPULSION SYSTEMS
76 S GETTY ST
MUSKEGON
MI
49442
231-724-2631

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81336

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CHIEF OF ENGINEERS
DEPT OF ARMY
NONE
WASHINGTON
DC
20314

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81336

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CHIEF OF ENGINEERS
DEPT OF ARMY
NONE
WASHINGTON
DC
20314

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97403

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CECOM LR CENTER
OPNS CENTER SITCO USASA MDW
10115 GRIDLEY RD SUITE 228
FORT BELVOIR
VA
22060

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Reference Numbers (Part Numbers)

ERNG270
ERNG270
13206E0166
13206E0166

Required Categories

MATERIAL
SURFACE TREATMENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
HOLE

Required Description

STEEL COMP 1010 OR
STEEL COMP 1011 OR
STEEL COMP 1012 OR
STEEL COMP 1013 OR;