5310-00-285-6575 WASHER,FLAT Index 5310-00-285-6581 WASHER,FLAT

National Stock Number:
5310-00-285-6578

Federal Supply Class:
5310

National Item Identification Number:
002856578

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:
MCH9624975PRESTOLITE ELECTRIC INC
MCH9668505PRESTOLITE ELECTRIC INC


Techincal Specification:
MATERIALLEATHER OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.640 INCHES MINIMUM AND
0.650 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.250 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.062 INCHES NOMINAL


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