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 2925-00-328-5204
NSN 6685-01-076-4703
NSN 5930-01-217-3871
NSN 5960-01-163-8905
NSN 5998-01-551-3585
NSN 5985-01-073-4491
NSN 4140-01-413-1529
NSN 6220-01-534-3965
NSN 6145-00-223-2885
NSN 5935-01-193-0667
NSN 6645-01-578-6815
NSN 5998-01-378-6402