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 5945-00-999-9519
NSN 5925-01-469-6667
NSN 5990-01-081-3845
NSN 7035-01-227-2546
NSN 6145-00-204-5992
NSN 6220-01-580-4188
NSN 6145-00-318-9206
NSN 5855-00-327-2112
NSN 6685-01-296-1848
NSN 6150-01-498-9885
NSN 5960-01-443-3067
NSN 4140-00-659-8283