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 5950-01-076-4570
NSN 5925-01-522-0439
NSN 5999-01-421-7955
NSN 5925-01-370-4417
NSN 6105-00-275-0826
NSN 5999-01-298-8276
NSN 5996-01-004-7832
NSN 5915-01-574-7419
NSN 6130-00-141-8317
NSN 6610-00-785-9239
NSN 5915-00-202-5192
NSN 5905-01-434-6227