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 5975-00-734-6243
NSN 5920-01-121-2368
NSN 5905-00-844-8797
NSN 5855-00-361-0167
NSN 7035-00-541-8516
NSN 5975-01-659-0111
NSN 5998-01-071-2063
NSN 6685-01-327-3195
NSN 6150-01-381-7282
NSN 6320-01-547-2743
NSN 5945-00-517-6224
NSN 5905-01-102-9810