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 7035-01-144-6408
NSN 5935-00-147-5406
NSN 6320-00-070-4544
NSN 5960-01-599-9821
NSN 6650-01-619-9986
NSN 5925-01-384-3234
NSN 6610-01-269-3070
NSN 6150-01-411-1823
NSN 6610-01-325-4784
NSN 5998-01-085-5150
NSN 6645-00-246-4934
NSN 5985-00-975-3152