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 5905-00-293-1570
NSN 5920-01-163-0551
NSN 5990-01-020-6841
NSN 5895-01-445-5526
NSN 5835-01-468-6170
NSN 6135-01-079-7852
NSN 6150-00-779-5547
NSN 6130-00-332-9359
NSN 6105-01-557-1219
NSN 5960-01-495-0859
NSN 2925-00-816-8765
NSN 5965-01-062-8730