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 6240-01-450-9149
NSN 6650-00-170-5095
NSN 5920-01-172-6358
NSN 5965-01-298-6313
NSN 5985-01-029-8322
NSN 6620-00-203-9466
NSN 6685-01-101-9005
NSN 5905-01-478-1211
NSN 5930-00-617-6715
NSN 5835-00-034-4976
NSN 5965-01-200-6613
NSN 6650-00-658-9627