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 6145-01-170-5286
NSN 6105-00-097-6251
NSN 6145-01-243-6585
NSN 4140-01-014-3454
NSN 6610-00-437-5681
NSN 5935-00-299-7149
NSN 5975-01-283-7847
NSN 6145-00-534-1412
NSN 6645-01-084-9074
NSN 5945-00-917-4999
NSN 5998-01-024-9347
NSN 5990-01-615-7823