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 6610-01-093-4710
NSN 5960-00-738-6469
NSN 5990-00-133-7734
NSN 6220-01-297-6688
NSN 5920-01-239-1858
NSN 6620-01-068-4498
NSN 6645-01-503-8211
NSN 2925-01-218-5556
NSN 6650-01-592-8910
NSN 6135-01-142-2417
NSN 5950-00-501-5140
NSN 5930-00-567-7870