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 5895-01-088-3678
NSN 5965-00-983-1815
NSN 5835-01-177-0375
NSN 5975-00-766-5614
NSN 6135-01-222-0703
NSN 5998-01-581-3749
NSN 6620-00-172-9222
NSN 6145-00-174-9344
NSN 6645-00-350-8070
NSN 5975-01-173-6936
NSN 6320-01-157-9076
NSN 5895-01-389-1166