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 5910-00-204-0111
NSN 5905-01-445-4323
NSN 6320-01-411-6610
NSN 5920-01-441-2286
NSN 6135-00-078-9931
NSN 2925-01-535-7235
NSN 5910-01-177-9073
NSN 6145-01-360-4335
NSN 5990-01-341-5735
NSN 6150-00-192-6359
NSN 5925-01-483-3361
NSN 7035-00-442-1869