5306-00-288-2551 BOLT Index 5310-00-288-2553 WASHER,FLAT

National Stock Number:
5310-00-288-2552

Federal Supply Class:
5310

National Item Identification Number:
002882552

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:
092011313446PERKINS ENGINES INC
0920113D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
0920113K5436PERKINS ENGINES CO LTD


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.580 INCHES MINIMUM AND 0.584 INCHES MAXIMUM
MATERIALCOPPER OVERALL
OVERALL DIAMETER0.840 INCHES MINIMUM AND 0.868 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.054 INCHES MINIMUM AND 0.058 INCHES MAXIMUM


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