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 5935-00-709-6291
NSN 6220-01-287-5511
NSN 6320-01-397-9995
NSN 5999-01-410-7802
NSN 6110-00-347-7290
NSN 4140-01-535-2691
NSN 5930-00-581-0939
NSN 5915-01-202-8426
NSN 6685-01-359-4481
NSN 5945-01-075-1997
NSN 5915-00-231-3783
NSN 6220-01-041-2093