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 5975-01-326-7195
NSN 6240-00-522-2306
NSN 7035-00-803-3056
NSN 6320-01-558-8844
NSN 5960-01-388-1988
NSN 5960-00-983-3317
NSN 6320-01-212-8749
NSN 5920-00-763-4839
NSN 6320-01-504-3948
NSN 5998-01-557-9272
NSN 6220-01-378-7467
NSN 5930-01-565-5171