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 5905-01-227-5470
NSN 6135-00-097-8162
NSN 5960-01-570-8605
NSN 5990-01-413-2405
NSN 6105-01-290-2067
NSN 6320-01-052-2118
NSN 6645-00-658-7838
NSN 2925-00-087-2465
NSN 2925-01-267-1598
NSN 6135-01-159-9705
NSN 5999-01-389-2428
NSN 5930-01-530-3878