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 6220-01-016-8128
NSN 6220-00-107-1835
NSN 5985-00-644-7996
NSN 6645-01-647-0509
NSN 6105-00-236-6788
NSN 5835-01-390-4667
NSN 6130-01-543-4264
NSN 5960-01-126-5767
NSN 5915-01-088-6773
NSN 5975-01-485-3490
NSN 2925-01-025-0082
NSN 5975-01-446-6074