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 5999-01-318-5931
NSN 5855-01-314-8335
NSN 6610-00-174-6709
NSN 5996-01-521-4007
NSN 5835-01-017-0958
NSN 5855-01-267-2751
NSN 6620-01-315-9328
NSN 6150-00-523-6707
NSN 2925-00-902-3881
NSN 5920-01-534-2459
NSN 5910-01-233-9350
NSN 5905-01-432-1961