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 6610-01-433-2219
NSN 6645-01-525-7493
NSN 5998-01-373-0016
NSN 5985-00-189-0953
NSN 6110-00-625-8643
NSN 6150-01-463-0572
NSN 5935-01-467-0352
NSN 5915-01-024-6653
NSN 5950-01-457-9721
NSN 6145-00-895-6548
NSN 5950-01-173-3274
NSN 6130-01-007-3479