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 2925-00-595-7525
NSN 5930-01-400-6126
NSN 6650-01-178-5644
NSN 4140-01-058-0292
NSN 6645-01-185-3461
NSN 6135-00-422-3967
NSN 5910-01-159-0094
NSN 6145-01-457-6719
NSN 5975-01-487-3748
NSN 6645-00-089-8842
NSN 6620-00-448-0667
NSN 7035-01-491-3981