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 6650-01-523-3600
NSN 2925-01-556-0333
NSN 5945-01-327-3629
NSN 6240-01-305-0908
NSN 6685-00-009-2325
NSN 4140-01-187-4990
NSN 5985-00-548-7126
NSN 5835-01-397-2865
NSN 5996-01-199-4885
NSN 6685-01-191-1539
NSN 5855-01-569-7816
NSN 5999-01-659-1512