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 6620-01-034-4539
NSN 5915-01-086-7921
NSN 6150-01-163-8793
NSN 7035-00-018-0350
NSN 6240-01-619-0104
NSN 5945-01-415-5087
NSN 5985-01-472-3658
NSN 5925-00-035-8469
NSN 5945-01-026-7730
NSN 4140-01-392-2107
NSN 6610-01-659-1485
NSN 5985-00-636-8689