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 6150-00-369-0376
NSN 4140-01-358-5141
NSN 6620-01-215-7979
NSN 2925-01-394-1812
NSN 6650-01-399-8552
NSN 5999-00-715-0872
NSN 2925-00-991-4499
NSN 5998-00-467-0076
NSN 5996-01-195-4122
NSN 5915-01-400-6125
NSN 5950-01-490-1609
NSN 6685-01-361-0851