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 6240-01-262-3451
NSN 5910-01-181-6586
NSN 5930-01-467-0925
NSN 6320-00-925-0558
NSN 4140-00-105-3083
NSN 6685-01-600-4761
NSN 6240-01-526-5099
NSN 6240-00-783-2853
NSN 6145-00-263-6989
NSN 5950-01-581-3246
NSN 5965-01-204-1423
NSN 5990-00-060-7009