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 5945-01-256-8521
NSN 6685-01-331-7090
NSN 6320-00-845-3261
NSN 6650-01-483-0440
NSN 5855-01-353-3958
NSN 5985-00-248-4978
NSN 5920-01-096-1864
NSN 6610-01-165-2026
NSN 5855-01-383-6860
NSN 5835-01-510-7293
NSN 6135-01-255-4786
NSN 6620-01-091-9697