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 6145-01-341-6945
NSN 5910-01-541-5046
NSN 6110-00-512-7845
NSN 6220-01-278-9369
NSN 6150-00-956-2276
NSN 4140-01-397-6138
NSN 7035-00-283-3112
NSN 7035-01-540-8443
NSN 5930-00-878-5985
NSN 2925-00-620-2496
NSN 5920-00-626-3287
NSN 6130-01-151-9560