4240-00-999-0420 HOOD,CHEMICAL-BIOLOGICAL MASK Index 5310-00-999-0425 WASHER,BELLCRANK,MA

National Stock Number:
5310-00-999-0424

Federal Supply Class:
5310

National Item Identification Number:
009990424

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:
2CX20445152OSHKOSH CORP
515971424617GENERAL MOTORS CORP
515971472582ROLLS-ROYCE SOLUTIONS AMERICA INC
51597147X677GENERAL MOTORS LLC
5310009990424SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
5311-10061796CEMEN TECH, INC.
PC5159714C7432POWER COMPONENTS (DEUTSCHLAND) GMBH


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
FEATURES PROVIDEDCASEHARDENED
HOLE DIAMETER0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM
OVERALL DIAMETER0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM


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