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 5950-01-275-0677
NSN 5960-00-416-6016
NSN 6110-00-601-2985
NSN 6110-01-352-1922
NSN 6220-00-709-8992
NSN 6130-01-167-0718
NSN 5905-01-199-0237
NSN 6650-00-161-4122
NSN 5990-01-272-4091
NSN 2925-01-411-8002
NSN 7035-01-321-1555
NSN 6220-01-567-6932