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 6110-01-657-6088
NSN 6135-00-087-5300
NSN 5925-00-168-8626
NSN 5960-01-632-6576
NSN 5855-01-240-8787
NSN 6610-01-399-7613
NSN 6105-01-361-6456
NSN 5920-00-149-1469
NSN 6685-01-320-0176
NSN 6240-01-320-1308
NSN 5996-00-221-7663
NSN 5975-01-617-7142