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 5990-01-482-5950
NSN 2925-01-111-2927
NSN 6685-01-446-7300
NSN 6610-01-113-2726
NSN 5935-00-609-6815
NSN 5835-01-416-6449
NSN 6320-01-439-5264
NSN 5999-01-436-3441
NSN 5930-00-825-8165
NSN 5920-01-099-5971
NSN 2925-00-310-3690
NSN 5965-01-182-5768