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 5999-01-095-0446
NSN 4140-00-322-9987
NSN 6150-01-217-4589
NSN 5990-01-174-6851
NSN 6110-01-175-4611
NSN 6220-00-842-2483
NSN 5905-00-019-8440
NSN 6610-00-841-8221
NSN 5960-00-890-9032
NSN 6610-01-388-8313
NSN 6135-00-405-1989
NSN 5950-01-605-1386