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 6220-01-272-2532
NSN 5990-00-404-9567
NSN 5990-00-552-1369
NSN 2925-01-277-3508
NSN 5935-01-422-1671
NSN 6645-01-101-2877
NSN 6685-01-647-7243
NSN 6145-01-377-0706
NSN 6320-00-242-3300
NSN 6220-01-522-2729
NSN 6220-00-759-0094
NSN 5905-00-196-5343