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 5950-01-245-2652
NSN 6110-01-427-8426
NSN 5999-01-488-5080
NSN 4140-01-269-7104
NSN 6150-01-242-0338
NSN 5855-01-361-9787
NSN 5920-00-126-1873
NSN 6620-01-288-8249
NSN 5855-01-207-5616
NSN 5910-01-553-6781
NSN 5985-00-872-8896
NSN 5990-00-481-7208