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 5915-00-112-3504
NSN 5905-01-550-4290
NSN 5999-01-285-7642
NSN 6110-01-123-1079
NSN 5925-01-158-9799
NSN 6240-01-514-7114
NSN 5935-01-011-4897
NSN 6610-01-371-3006
NSN 5999-00-828-5499
NSN 5975-01-587-4046
NSN 5998-01-408-5981
NSN 6130-01-529-7000