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 5965-01-514-9109
NSN 6620-01-645-8717
NSN 5895-01-420-3439
NSN 6130-00-863-5345
NSN 4140-01-236-0112
NSN 4140-01-372-5718
NSN 7035-01-232-7263
NSN 6105-01-430-9736
NSN 5965-01-538-8795
NSN 5920-01-508-7820
NSN 2925-00-998-3510
NSN 6145-01-246-9246