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 6145-01-025-2296
NSN 6135-00-985-7845
NSN 5855-00-832-9341
NSN 6150-01-468-0086
NSN 5935-00-012-4141
NSN 6650-00-462-2558
NSN 5910-01-607-7242
NSN 6220-01-076-9372
NSN 6220-01-266-6548
NSN 5915-01-155-2644
NSN 6220-01-371-1791
NSN 6620-01-456-0529