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 5998-01-612-0150
NSN 2925-00-734-0516
NSN 5975-01-367-1859
NSN 5895-01-286-3376
NSN 5935-00-138-4230
NSN 5999-01-500-6785
NSN 6135-00-921-6487
NSN 6650-01-100-0933
NSN 5855-00-058-1293
NSN 6610-00-456-0485
NSN 6110-01-054-3032
NSN 6645-00-262-7448