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 2925-01-478-8191
NSN 6610-01-311-5872
NSN 5960-01-462-7704
NSN 5910-01-495-6595
NSN 2925-01-181-3972
NSN 5950-00-391-2458
NSN 5895-01-082-4065
NSN 5990-01-152-3974
NSN 5910-01-400-0891
NSN 2925-01-461-6372
NSN 6645-01-032-5337
NSN 6320-01-504-3948