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: Copper washers including spring washers not threaded
NSN 5905-00-139-2620
NSN 5998-00-541-8792
NSN 5999-01-648-2640
NSN 6650-00-870-3226
NSN 5999-01-281-9529
NSN 5950-01-578-8337
NSN 4140-00-597-5260
NSN 5925-01-587-8519
NSN 5985-00-487-4610
NSN 6135-01-361-9297
NSN 6105-01-082-1208
NSN 5945-00-272-5536