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 6610-00-042-8461
NSN 5930-00-943-4636
NSN 6105-01-174-4675
NSN 4140-00-856-0533
NSN 5998-00-103-7985
NSN 6135-01-090-5365
NSN 2925-01-579-1010
NSN 2925-01-426-3410
NSN 6650-00-952-2754
NSN 2925-01-300-2897
NSN 6685-01-461-3223
NSN 6610-01-036-8225