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 5925-01-606-0375
NSN 5935-00-661-0825
NSN 5835-01-612-4753
NSN 6650-00-653-1744
NSN 5965-01-577-1984
NSN 6150-00-247-6246
NSN 6620-00-646-9474
NSN 6135-01-393-4746
NSN 6645-00-922-0886
NSN 2925-00-221-8529
NSN 5965-01-312-7972
NSN 4140-01-174-4390