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 4140-00-501-7833
NSN 7035-01-013-9889
NSN 5855-01-256-2551
NSN 5996-00-150-8842
NSN 5925-01-371-2876
NSN 5905-01-596-5434
NSN 6130-01-192-7586
NSN 6685-01-646-7820
NSN 5855-01-103-8650
NSN 5985-00-191-2924
NSN 5975-00-610-5875
NSN 6220-00-991-8280