Square nut; heavy
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 6610-01-357-1940
NSN 5915-01-391-6618
NSN 5895-00-451-3992
NSN 6620-00-868-7104
NSN 5855-01-483-1350
NSN 5910-00-233-6805
NSN 5855-00-145-3307
NSN 6105-00-935-0376
NSN 5910-00-984-2961
NSN 6240-01-471-0391
NSN 5960-01-113-4839
NSN 6685-01-646-8033