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 5990-00-247-0975
NSN 5895-01-391-1320
NSN 2925-01-524-6622
NSN 5920-01-564-4873
NSN 6130-01-350-8457
NSN 5965-01-408-9233
NSN 6110-01-063-8309
NSN 5998-01-634-0604
NSN 5996-01-397-2142
NSN 6650-00-629-8027
NSN 6105-00-738-9415
NSN 5965-01-318-8138