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 5920-00-078-2132
NSN 5975-01-425-1268
NSN 5960-01-089-7174
NSN 6220-00-557-8229
NSN 5905-01-216-0810
NSN 6320-01-573-3215
NSN 6220-01-027-4223
NSN 6685-01-143-1348
NSN 5975-00-152-1148
NSN 6650-00-118-5600
NSN 6650-00-116-7439
NSN 6320-00-194-4252