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 5998-01-131-8146
NSN 5999-01-310-3511
NSN 5999-01-213-1591
NSN 5925-01-522-3360
NSN 6320-00-377-5683
NSN 6645-01-333-6962
NSN 2925-01-064-3729
NSN 7035-00-300-3208
NSN 5835-01-263-1293
NSN 6130-00-442-0286
NSN 5945-00-849-2359
NSN 6105-01-495-1492