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 5975-01-227-4967
NSN 6645-01-270-6806
NSN 5990-00-281-4164
NSN 6145-00-007-6429
NSN 6610-01-533-7458
NSN 6130-01-325-8118
NSN 7035-01-372-3361
NSN 5925-00-884-5469
NSN 5910-01-424-3729
NSN 5855-00-930-9478
NSN 5998-01-379-4708
NSN 6220-00-162-5047