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 6105-01-102-4425
NSN 7035-01-330-6768
NSN 6105-01-397-4608
NSN 5930-01-076-5046
NSN 6650-01-512-1930
NSN 5985-01-423-7339
NSN 4140-01-305-9739
NSN 5999-01-631-3259
NSN 5996-00-155-4586
NSN 7035-01-245-2858
NSN 5990-00-826-0991
NSN 5935-01-054-2357