5360-00-276-3438 SPRING,HELICAL,TORSION Index 5310-00-276-3445 WASHER,FLAT

National Stock Number:
5310-00-276-3440

Federal Supply Class:
5310

National Item Identification Number:
002763440

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:
101820070219CHRYSLER CORP DAYTON PLANT 1
1018200R50019READY POWER CO THE
AT101820023705FRUEHAUF CORP
FF-W-9281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTANNEALED
HOLE DIAMETER0.504 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
OVERALL DIAMETER0.743 INCHES MINIMUM AND 0.757 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.0249 INCHES MINIMUM AND 0.0389 INCHES MAXIMUM


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