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 5985-00-203-1200
NSN 5999-01-482-0496
NSN 2925-00-388-8932
NSN 6685-01-463-5807
NSN 5920-00-455-9743
NSN 6610-01-145-2569
NSN 6130-01-158-9437
NSN 5855-01-536-9647
NSN 6135-00-170-8819
NSN 5950-01-535-3967
NSN 6620-01-104-5758
NSN 6150-01-595-3030