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 5855-01-264-8599
NSN 4140-01-516-0129
NSN 6620-01-029-3705
NSN 2925-01-411-4666
NSN 6135-00-866-2311
NSN 5998-00-959-2283
NSN 6105-00-581-5331
NSN 6145-01-358-4001
NSN 6150-00-853-6440
NSN 6645-01-411-5657
NSN 6685-00-839-8623
NSN 5905-01-221-2463