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 5975-00-300-0731
NSN 5998-00-925-2567
NSN 5999-01-006-0375
NSN 5835-01-535-8470
NSN 5999-01-425-8749
NSN 5855-01-074-3335
NSN 6220-00-012-3620
NSN 6145-00-286-9588
NSN 5925-01-273-2161
NSN 5965-00-627-8382
NSN 6320-01-287-5345
NSN 6220-01-442-3354