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 2925-01-244-3016
NSN 6105-01-430-2288
NSN 6620-00-066-1284
NSN 6145-01-118-1417
NSN 5985-00-862-8110
NSN 6685-00-720-3525
NSN 6320-01-255-2096
NSN 5920-00-059-3543
NSN 2925-01-208-3639
NSN 6135-01-551-0562
NSN 5905-00-676-7972
NSN 5990-01-027-5433