5360-00-482-4328 SPRING,HELICAL,COMPRESSION Index 5310-00-482-4331 WASHER,FLAT

National Stock Number:
5310-00-482-4330

Federal Supply Class:
5310

National Item Identification Number:
004824330

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:
65C35586-798750SAN ANTONIO AIR LOGISTICS CENTER


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.500 INCHES MINIMUM AND 1.562 INCHES MAXIMUM
OVERALL DIAMETER2.969 INCHES MINIMUM AND 3.031 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613,1/2 HARD FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCOPPER ALLOY 268 OR COPPER ALLOY 260 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.052 INCHES MINIMUM AND 0.062 INCHES MAXIMUM


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