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 5999-00-274-2834
NSN 5905-01-513-4095
NSN 6240-00-269-0964
NSN 6685-01-132-4637
NSN 2925-01-523-3607
NSN 6240-01-017-1049
NSN 6220-01-257-1075
NSN 6320-01-260-7390
NSN 6685-01-605-5707
NSN 5855-01-275-5470
NSN 5985-01-315-1931
NSN 5996-00-454-1828