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 5999-00-541-9347
NSN 5960-00-677-7444
NSN 5835-01-313-7054
NSN 5915-00-067-9727
NSN 6145-01-270-3073
NSN 5996-01-195-4122
NSN 5975-01-548-5529
NSN 5996-00-894-5603
NSN 5835-00-647-2104
NSN 5935-00-715-0295
NSN 5855-01-252-5424
NSN 6610-01-611-1929