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 5855-01-223-0833
NSN 5950-00-116-7708
NSN 6220-00-081-6429
NSN 6650-01-068-2258
NSN 4140-01-593-8951
NSN 5999-00-993-1171
NSN 5975-00-905-5194
NSN 6220-01-224-8746
NSN 5960-01-265-1393
NSN 6645-00-243-4921
NSN 4140-01-647-0707
NSN 5960-01-198-7965