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 6610-01-396-5628
NSN 6320-01-457-2805
NSN 6610-01-204-2571
NSN 5945-00-997-2188
NSN 5905-00-597-6081
NSN 4140-00-155-8012
NSN 6645-01-492-9823
NSN 6105-00-726-8684
NSN 6650-00-279-5741
NSN 5930-01-104-3984
NSN 5945-01-030-3834
NSN 6645-01-439-4240