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 6610-00-339-2981
NSN 6650-01-651-2324
NSN 6135-01-093-7426
NSN 5920-00-058-5474
NSN 6620-00-456-0404
NSN 5990-00-170-4239
NSN 6105-00-413-8097
NSN 5960-00-889-5470
NSN 5985-01-648-2503
NSN 5930-01-281-7696
NSN 6320-01-439-5264
NSN 5960-01-264-2087