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 5925-01-288-0025
NSN 6130-01-507-7867
NSN 5915-01-615-7639
NSN 6220-01-517-5606
NSN 6620-01-416-1757
NSN 6135-01-538-7086
NSN 6135-01-555-4283
NSN 5965-01-267-5263
NSN 5925-00-996-5183
NSN 6620-00-160-0844
NSN 6645-01-053-3185
NSN 7035-01-339-5480