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 5975-00-114-2158
NSN 6150-01-576-6287
NSN 5998-00-686-2152
NSN 5999-01-260-6521
NSN 6320-01-176-8367
NSN 5910-01-378-6203
NSN 6685-01-247-2447
NSN 6220-01-475-1211
NSN 6145-01-606-1849
NSN 5950-01-065-2288
NSN 5915-00-445-1557
NSN 5996-01-520-8412