4820-01-553-2252 CARTRIDGE,SHUT-OFF VALVE Index 5310-01-553-2254 WASHER,FLAT

National Stock Number:
5310-01-553-2253

Federal Supply Class:
5310

National Item Identification Number:
015532253

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:
90313A20739428MCMASTER-CARR SUPPLY CO
90313A2073VUQ3ALL AMERICAN WASHER WERKS INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.406 INCHES NOMINAL
OVERALL DIAMETER1.625 INCHES NOMINAL
SPECIAL FEATURES18-8 CORROSION RESISTANT STAINLESS STEEL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.063 INCHES NOMINAL


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