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 5985-00-174-3572
NSN 5945-00-639-9848
NSN 6620-01-492-8470
NSN 6240-01-475-9503
NSN 2925-01-583-5619
NSN 5990-01-595-9441
NSN 5965-01-325-0627
NSN 5975-01-180-7752
NSN 6685-01-326-0901
NSN 5895-01-149-0039
NSN 6645-01-170-0341
NSN 5835-01-370-4292