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 6645-01-633-1852
NSN 6135-01-226-4071
NSN 6220-01-334-6975
NSN 5895-01-042-4850
NSN 5835-00-092-1136
NSN 5905-00-432-7845
NSN 5945-01-450-8549
NSN 5975-01-423-1102
NSN 5990-01-116-2181
NSN 5855-01-178-1130
NSN 6685-00-970-3897
NSN 2925-00-679-8131