National Item Identification Number

00-831-2339

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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0EGF1

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CMP HYDRAULICS INC.
DIV OF C M P MFG INC
1 RODEO DR
BRENTWOOD
NY
11717
631-243-1700

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11599

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GOODRICH CORPORATION
DBA GOODRICH PUMP ENG CTRL SYSTEMS
1 CHARTER OAK BLVD
W HARTFORD
CT
06133
860-523-2274

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3X841

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A AND R MFG CO INC
1281 JOHN FITCH BLVD
241
SOUTH WINDSOR
CT
06074
860-282-1118

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Reference Numbers (Part Numbers)

70490
70490
70490

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
HOLE DIAMETER

Required Description

ALUMINUM ALLOY 2024 OVERALL
AMS 4,20,TEMPER T4 ASSN STD SINGLE MATERIAL RESPONS