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 5960-01-027-1835
NSN 6620-00-500-0041
NSN 6645-00-171-9639
NSN 6105-01-424-0275
NSN 5905-01-427-3804
NSN 6220-01-370-0831
NSN 5855-00-055-1694
NSN 2925-01-061-4012
NSN 5935-01-516-4035
NSN 7035-01-181-2705
NSN 6130-00-233-6197
NSN 4140-00-300-8111