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 5998-01-468-1660
NSN 6240-01-369-6464
NSN 5835-01-510-1873
NSN 2925-01-317-4543
NSN 6130-01-192-2499
NSN 5910-01-522-8370
NSN 6240-00-539-9770
NSN 6150-00-964-7303
NSN 6130-01-206-4032
NSN 5905-00-079-0691
NSN 5905-01-145-5434
NSN 5855-01-033-1375