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 5920-01-442-7685
NSN 2925-01-364-7926
NSN 2925-01-604-8984
NSN 4140-00-552-7370
NSN 5920-01-415-2878
NSN 5950-01-044-8096
NSN 4140-01-587-3998
NSN 5895-01-576-7523
NSN 5998-01-221-7729
NSN 5935-00-257-1294
NSN 6685-00-188-1991
NSN 5990-00-155-2306