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 5990-01-160-6978
NSN 5998-01-464-2781
NSN 6220-00-079-0851
NSN 6685-01-094-0540
NSN 5925-01-259-8697
NSN 6145-01-066-6806
NSN 5975-00-915-7632
NSN 6610-01-073-8526
NSN 5920-01-641-5469
NSN 6105-01-416-4029
NSN 2925-00-839-6815
NSN 6110-01-204-1270