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 6620-01-140-8684
NSN 5915-01-603-8909
NSN 5895-01-401-5388
NSN 5925-01-549-8757
NSN 5905-01-176-7352
NSN 5920-00-681-1172
NSN 5905-01-085-6405
NSN 5999-00-389-6251
NSN 7035-01-137-6206
NSN 6220-01-441-2889
NSN 5920-01-596-6168
NSN 5990-01-056-6413