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 4140-00-725-4012
NSN 5895-01-115-3212
NSN 5925-00-809-7050
NSN 2925-00-241-5244
NSN 5965-01-500-9207
NSN 6685-00-478-7008
NSN 5855-01-599-5491
NSN 5945-01-003-9426
NSN 6620-00-910-5464
NSN 6240-01-225-3862
NSN 6220-01-262-1605
NSN 6220-00-202-8591