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 2925-00-338-4667
NSN 7035-01-372-3361
NSN 6320-01-325-3620
NSN 6220-00-104-8129
NSN 6145-00-735-1799
NSN 6685-00-757-4442
NSN 6110-01-242-8363
NSN 5996-01-520-8412
NSN 5996-00-169-7667
NSN 6220-00-583-9889
NSN 5920-00-466-3950
NSN 6620-01-112-6440