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 6240-01-029-1877
NSN 5935-00-415-2027
NSN 5975-01-555-9474
NSN 6105-00-671-1785
NSN 5965-01-141-6485
NSN 4140-00-036-6447
NSN 5915-00-892-3011
NSN 2925-00-041-0439
NSN 5950-00-790-8942
NSN 6650-00-527-8822
NSN 5835-00-463-6699
NSN 6610-00-822-0431