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 2925-00-144-6405
NSN 6135-00-262-6807
NSN 6645-01-035-3787
NSN 5996-01-093-6154
NSN 5910-01-499-3858
NSN 6240-00-527-8614
NSN 5925-01-016-1146
NSN 5985-00-173-3545
NSN 6610-01-051-8484
NSN 4140-01-313-3733
NSN 6610-01-441-8364
NSN 6645-01-375-5488