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 6685-01-397-0117
NSN 6240-01-633-2239
NSN 6135-01-415-1163
NSN 6320-01-195-5583
NSN 2925-01-516-0124
NSN 5999-00-406-4596
NSN 5998-01-407-6883
NSN 6645-01-417-1913
NSN 6610-00-827-8959
NSN 6240-01-174-1907
NSN 5996-01-108-4295
NSN 5998-01-419-9606