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 5930-01-432-8781
NSN 5925-01-445-3375
NSN 5895-00-995-4631
NSN 5930-01-438-8470
NSN 5930-00-767-1088
NSN 6130-00-921-4448
NSN 5950-01-538-4861
NSN 5945-01-538-4657
NSN 5920-01-172-8509
NSN 5975-01-578-7001
NSN 6685-01-523-3394
NSN 5960-01-293-6624