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 6620-01-270-7232
NSN 5998-01-336-0460
NSN 5920-00-803-3290
NSN 5950-01-377-3298
NSN 6610-00-526-9440
NSN 6650-00-393-0447
NSN 6220-00-409-2120
NSN 5985-00-954-6495
NSN 6620-00-193-9503
NSN 6105-01-197-6225
NSN 5985-00-100-0140
NSN 6645-01-162-8023