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 5975-00-099-9312
NSN 6220-01-424-1548
NSN 4140-00-040-2084
NSN 5965-00-594-3115
NSN 6650-01-145-5173
NSN 5945-00-502-2471
NSN 6685-01-458-2774
NSN 6320-01-214-0350
NSN 2925-01-008-5696
NSN 6150-00-590-3454
NSN 6135-00-100-8890
NSN 5935-01-368-3393