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 6130-00-137-6390
NSN 6610-01-384-1587
NSN 2925-00-221-8529
NSN 4140-01-575-5060
NSN 6105-00-255-5927
NSN 5985-01-521-3988
NSN 7035-00-096-9986
NSN 5960-01-352-0451
NSN 6145-01-561-8678
NSN 6150-00-518-1402
NSN 5975-01-461-9407
NSN 6645-01-070-1210