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 6650-00-077-0638
NSN 5915-01-076-5754
NSN 6645-00-145-6411
NSN 5920-01-619-2621
NSN 5835-01-545-6467
NSN 6610-00-911-6492
NSN 5910-00-794-4365
NSN 6240-01-103-9884
NSN 5935-00-466-2845
NSN 7035-01-461-7742
NSN 5920-00-397-0802
NSN 6145-00-008-1834