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 5999-00-560-7173
NSN 5998-01-173-1700
NSN 6620-01-367-4960
NSN 5945-01-392-6361
NSN 6620-00-814-4770
NSN 5965-01-221-0569
NSN 6685-01-361-6969
NSN 5999-01-217-8812
NSN 4140-01-393-7455
NSN 5950-01-394-1737
NSN 6240-00-583-9863
NSN 6110-00-539-9543