5310-01-328-4298 WASHER,FLAT Index 5310-01-328-4300 WASHER,FLAT

National Stock Number:
5310-01-328-4299

Federal Supply Class:
5310

National Item Identification Number:
013284299

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:
8721106-015RQL2DRS ENVIRONMENTAL SYSTEMS INC
8721106-0190598ENGINEERED AIR SYSTEMS INC. DBA DRS SUSTAINMENT SYSTEMS
8721106-0192878HDT EXPEDITIONARY SYSTEMS INC


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