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 6130-01-140-2239
NSN 6220-01-511-5148
NSN 6320-00-809-5744
NSN 5910-00-551-2442
NSN 5999-00-481-5263
NSN 6240-00-855-4518
NSN 5935-01-202-9334
NSN 6240-01-071-2127
NSN 5905-00-933-7589
NSN 6685-01-111-5288
NSN 5999-00-138-5001
NSN 5996-00-211-7010