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 6240-01-630-3442
NSN 5905-01-564-7390
NSN 4140-01-290-4026
NSN 5910-00-847-4062
NSN 5895-01-429-4556
NSN 5990-01-055-4012
NSN 5920-01-430-4081
NSN 5950-00-642-5951
NSN 5910-01-260-8546
NSN 5835-01-391-4556
NSN 5998-01-570-7861
NSN 5965-00-482-7945