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 5945-01-510-9223
NSN 4140-01-421-0816
NSN 6645-00-565-1569
NSN 5965-00-252-0803
NSN 6645-01-076-4655
NSN 6130-00-435-4738
NSN 6220-00-252-0702
NSN 5950-00-014-5663
NSN 6150-01-598-8860
NSN 5930-01-539-1889
NSN 6105-01-418-6951
NSN 5855-01-576-4223