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 6650-01-250-3989
NSN 5895-01-305-7685
NSN 6145-00-526-3056
NSN 5950-00-986-7554
NSN 5975-00-007-5141
NSN 5835-00-257-2852
NSN 6685-01-211-5278
NSN 5998-00-015-3703
NSN 5925-01-469-6667
NSN 5925-00-904-5763
NSN 5990-01-154-7296
NSN 5935-00-765-9619