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 6130-00-578-9783
NSN 5990-01-179-5625
NSN 6130-01-385-2191
NSN 6240-01-455-4520
NSN 5950-01-230-8509
NSN 5925-01-152-4037
NSN 5895-01-458-8043
NSN 5999-00-045-9446
NSN 2925-00-324-9052
NSN 5915-01-318-9636
NSN 6135-01-045-1504
NSN 6650-00-229-3790