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 5998-01-525-4704
NSN 5935-00-407-2933
NSN 5915-01-447-3151
NSN 6685-01-065-3511
NSN 5960-01-481-3722
NSN 5835-01-441-4746
NSN 5925-01-415-6551
NSN 6685-00-459-8984
NSN 5996-01-643-7644
NSN 5935-00-728-9528
NSN 6145-01-019-2529
NSN 5965-01-625-1006