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 5895-00-843-5418
NSN 6685-00-475-9589
NSN 5945-00-089-9130
NSN 4140-01-463-2114
NSN 6645-00-558-0028
NSN 6110-01-158-6138
NSN 5990-01-004-6343
NSN 5990-01-447-7779
NSN 2925-00-869-1451
NSN 5996-01-151-2452
NSN 5998-00-840-5308
NSN 6685-00-164-7014