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 6645-01-411-5657
NSN 5965-00-233-3851
NSN 6105-00-840-5522
NSN 5965-00-403-4287
NSN 6145-00-166-7950
NSN 4140-00-299-6328
NSN 5998-00-596-9568
NSN 6130-01-083-4365
NSN 6645-00-720-3953
NSN 5960-00-113-4314
NSN 5990-01-272-4091
NSN 6145-01-151-2823