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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 6645-01-522-1512
NSN 6150-00-864-5114
NSN 2925-00-720-3948
NSN 6135-01-034-2239
NSN 5935-01-272-4348
NSN 5915-01-237-2480
NSN 5905-01-301-4799
NSN 6650-01-653-2556
NSN 2925-00-480-9068
NSN 5990-01-344-7778
NSN 6645-01-128-0895
NSN 5990-00-136-7129