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: Washers other than lock washers, iron or steel
NSN 5975-01-427-3521
NSN 5945-01-500-1371
NSN 6240-01-501-7909
NSN 4140-01-508-6242
NSN 6220-01-131-8076
NSN 5905-01-576-8394
NSN 6135-01-119-0720
NSN 2925-00-580-4931
NSN 6130-01-044-5436
NSN 5935-01-175-2933
NSN 5895-01-573-5761
NSN 5996-01-159-7866