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 5930-01-270-6998
NSN 7035-00-270-5519
NSN 6685-01-430-1142
NSN 6240-01-407-5690
NSN 4140-00-262-9921
NSN 5930-01-461-5241
NSN 5855-01-433-2220
NSN 5905-01-646-4016
NSN 6240-01-608-4990
NSN 5935-00-023-1481
NSN 2925-01-574-7119
NSN 6130-01-503-4845