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 6220-00-030-6728
NSN 5910-00-350-1944
NSN 5915-01-370-6417
NSN 5915-01-304-6915
NSN 5915-01-367-6207
NSN 5950-01-431-6884
NSN 5975-01-211-5975
NSN 6135-01-187-0033
NSN 5895-01-525-1430
NSN 5935-00-611-7350
NSN 6135-01-222-0703
NSN 5835-01-476-8210