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.
Classification: Copper washers including spring washers not threaded
NSN 5985-01-576-5422
NSN 5920-01-631-0047
NSN 5895-01-138-3107
NSN 6645-00-739-6718
NSN 6150-01-023-7710
NSN 6110-00-180-4601
NSN 5945-01-213-1817
NSN 5910-00-287-3258
NSN 5996-00-428-8130
NSN 5905-01-160-7546
NSN 6240-01-463-1169
NSN 5975-00-054-2496