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 5935-01-334-5467
NSN 5965-01-318-3945
NSN 6320-00-110-8005
NSN 6620-01-356-2374
NSN 5985-01-557-5371
NSN 6110-01-650-4160
NSN 5910-01-318-4410
NSN 5998-01-428-4238
NSN 5998-01-435-9245
NSN 6110-01-413-4941
NSN 5975-00-472-7778
NSN 6135-00-269-5843