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 5950-01-257-1731
NSN 6135-01-040-1446
NSN 6645-00-615-8246
NSN 5925-00-006-3539
NSN 4140-01-146-8274
NSN 5999-00-116-0511
NSN 6150-01-578-6786
NSN 5930-01-495-9022
NSN 5998-01-302-2087
NSN 2925-01-374-2402
NSN 6320-01-046-5228
NSN 5985-01-654-2263