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 5990-00-057-2795
NSN 5990-00-501-1019
NSN 5999-01-025-7490
NSN 5998-01-263-1016
NSN 5965-00-208-4896
NSN 5915-01-054-3788
NSN 2925-00-564-1692
NSN 6685-00-951-4540
NSN 5915-01-606-9408
NSN 6135-01-518-9813
NSN 5905-01-574-9318
NSN 6135-01-416-3181