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 5945-01-026-7730
NSN 5996-00-757-7742
NSN 6145-00-578-7522
NSN 5935-00-846-8740
NSN 5975-01-553-2795
NSN 6610-01-424-0283
NSN 4140-00-175-6036
NSN 6220-01-600-5971
NSN 5996-01-423-9423
NSN 6645-01-025-1002
NSN 6150-00-798-7004
NSN 6645-01-602-3813