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 6610-01-476-7412
NSN 6650-01-594-3888
NSN 6240-01-171-9500
NSN 5920-01-602-7908
NSN 6650-00-164-7480
NSN 6220-01-495-3301
NSN 5985-00-728-1640
NSN 2925-00-275-1807
NSN 5945-00-067-0007
NSN 5915-01-590-7375
NSN 6220-01-046-7485
NSN 5999-01-181-8896