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 6320-01-006-6138
NSN 2925-00-284-1534
NSN 5895-01-355-0801
NSN 5835-01-291-3201
NSN 5915-01-181-7056
NSN 5915-01-181-6626
NSN 6145-01-275-3550
NSN 5835-00-665-3395
NSN 5996-01-573-1018
NSN 6685-00-186-0190
NSN 6645-00-279-1777
NSN 5895-00-991-6635