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 6645-00-470-5310
NSN 5965-01-382-3415
NSN 6650-01-209-6318
NSN 6145-01-294-2303
NSN 5998-00-723-6360
NSN 5990-01-362-7532
NSN 6110-00-542-2202
NSN 5965-00-592-0812
NSN 7035-01-177-2807
NSN 6645-01-362-2587
NSN 6145-01-353-0440
NSN 4140-00-287-9199