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 6610-00-456-0485
NSN 6145-01-290-3986
NSN 6645-00-711-5381
NSN 5935-01-413-9255
NSN 5960-01-114-7377
NSN 5985-00-261-7753
NSN 5855-01-003-7102
NSN 4140-00-905-6570
NSN 5925-01-213-9344
NSN 5905-01-212-4364
NSN 5935-01-502-9932
NSN 6610-00-557-5678