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 5920-00-221-8377
NSN 6685-01-643-5432
NSN 5999-01-349-8682
NSN 5975-01-634-0678
NSN 5998-01-020-7848
NSN 5895-00-173-7881
NSN 5930-01-119-9223
NSN 4140-01-603-7259
NSN 5996-01-455-6495
NSN 6650-00-754-2276
NSN 5945-00-202-9741
NSN 6645-00-633-3824