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 6240-01-088-7629
NSN 5985-01-094-7841
NSN 5895-00-016-0699
NSN 6320-01-106-4414
NSN 2925-00-960-4737
NSN 6620-00-830-3554
NSN 6320-01-445-8192
NSN 5996-01-179-5038
NSN 5998-00-795-7644
NSN 6685-01-628-2566
NSN 5920-01-206-9947
NSN 6240-01-484-0335