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 5960-00-578-1920
NSN 6610-01-484-3161
NSN 6105-01-361-8352
NSN 7035-01-328-7448
NSN 4140-00-368-4261
NSN 5895-01-206-4619
NSN 6145-01-111-7713
NSN 4140-00-164-6832
NSN 5996-00-389-7404
NSN 6105-01-266-6185
NSN 5855-00-252-5743
NSN 6220-01-605-1346