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 6610-01-444-4001
NSN 5915-01-550-1879
NSN 6105-01-583-5526
NSN 6320-01-362-9518
NSN 6150-01-419-5965
NSN 5910-01-087-9366
NSN 5920-01-519-2691
NSN 5895-01-167-6904
NSN 5965-00-275-0491
NSN 6220-00-187-0649
NSN 5935-00-103-6466
NSN 6685-01-215-1204