5310-00-193-7425 WASHER,SPRING TENSION Index 5310-00-193-7428 WASHER,KEY

National Stock Number:
5310-00-193-7426

Federal Supply Class:
5310

National Item Identification Number:
001937426

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:
503/2/04148/001K2523EATON LIMITED
920B873-179500WESTINGHOUSE ELECTRIC CORP
920B873-183843SUNDSTRAND CORP ELECTRIC POWER SYSTEMS DIV
920B873-199167HAMILTON SUNDSTRAND CORPORATION
K34J444P4824446GENERAL ELECTRIC COMPANY


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.214 INCHES MINIMUM AND 0.227 INCHES MAXIMUM
OVERALL DIAMETER0.500 INCHES NOMINAL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTNICKEL OVERALL
THICKNESS0.062 INCHES NOMINAL


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