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 5945-01-400-4157
NSN 6620-01-294-1044
NSN 6130-00-224-8387
NSN 6130-01-124-7928
NSN 5835-01-386-4027
NSN 5965-00-680-9749
NSN 5945-00-357-1382
NSN 5960-00-911-3422
NSN 5996-00-107-5357
NSN 5965-01-027-6554
NSN 6610-01-308-6148
NSN 6685-01-479-3043