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 5930-01-368-0477
NSN 5950-01-185-7347
NSN 5895-01-214-0052
NSN 5910-01-606-9761
NSN 6110-01-318-5026
NSN 4140-01-564-6840
NSN 5945-00-180-8374
NSN 5975-00-306-4688
NSN 5998-01-087-7813
NSN 5835-01-264-8782
NSN 5996-01-124-6350
NSN 6145-01-224-1833