National Item Identification Number
National Stock Number
Federal Supply Class
A washer, round in shape, and having a centrally located hole. Its two flat parallel bearing surfaces are divided or cut along the radius, leaving a cleft, fissure, or cutaway portion across the rim which extends from the outer circumference to the washer hole and is always as large as, or larger than the diameter of the hole.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
COPPER ALLOY OVERALL
OXIDE FILM OVERALL