National Item Identification Number
National Stock Number
Federal Supply Class
A hexagonal or octagonal nut containing internal straight pipe threads. It has flat faces, one of which contains a packing recess. See also LOCKNUT, ELECTRICAL CONDUIT; LOCKNUT, TUBE FITTING; and SEAL NUT, PIPE.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
DITCHING MACHINE,CHARLES MACHINE WORKS,MODEL NO. 6510