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 6130-01-473-0475
NSN 2925-01-327-3069
NSN 6610-01-429-7267
NSN 5975-01-378-6578
NSN 5905-00-655-3987
NSN 6610-00-966-5740
NSN 5920-00-269-4060
NSN 6135-01-220-7193
NSN 5910-01-521-1784
NSN 6645-00-295-8535
NSN 6135-01-190-2628
NSN 5945-01-025-7534