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 5920-01-201-7346
NSN 6110-01-592-1784
NSN 4140-00-269-5795
NSN 6150-01-017-3132
NSN 5950-01-454-7677
NSN 5910-00-897-9897
NSN 5996-01-186-5671
NSN 5999-01-084-8338
NSN 6145-01-276-3415
NSN 5950-01-184-0400
NSN 5965-01-474-4000
NSN 6240-00-020-4709