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.
Dept. of the Navy Classification: Copper washers including spring washers not threaded
NSN 6240-01-102-1555
NSN 6320-01-157-9076
NSN 5985-01-432-2483
NSN 5945-01-323-1720
NSN 5950-01-092-9123
NSN 5998-00-732-8264
NSN 6145-00-106-0611
NSN 6105-01-244-7123
NSN 5996-00-987-3886
NSN 5855-00-256-5562
NSN 6685-01-321-7931
NSN 5990-01-159-5988