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 5905-01-391-1235
NSN 5996-01-502-2907
NSN 6105-01-280-5343
NSN 5920-01-658-4332
NSN 7035-01-014-3808
NSN 5985-01-503-8673
NSN 6130-01-238-6825
NSN 5925-01-026-5845
NSN 6145-00-594-7822
NSN 5996-00-014-7811
NSN 6240-01-189-2367
NSN 6135-00-548-2765