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 5945-01-059-4272
NSN 6610-01-583-4539
NSN 6240-01-520-3390
NSN 6320-00-809-5744
NSN 6240-00-485-3128
NSN 6650-00-187-5388
NSN 5855-01-258-6180
NSN 6220-01-050-8706
NSN 5960-01-089-1368
NSN 5945-01-541-4827
NSN 2925-01-231-6312
NSN 2925-01-424-9341