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 5835-01-310-8979
NSN 6650-01-100-3185
NSN 5998-01-310-4941
NSN 6320-00-521-9350
NSN 6610-00-931-3656
NSN 5925-01-602-9311
NSN 2925-01-544-4880
NSN 6685-01-392-1513
NSN 6240-00-172-8451
NSN 6220-01-613-4722
NSN 5835-01-478-9428
NSN 5996-00-097-1239