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 6320-00-394-8458
NSN 6150-01-364-1537
NSN 5960-01-210-0879
NSN 5930-01-354-0301
NSN 6610-01-207-0045
NSN 5998-01-368-2750
NSN 5960-01-294-2397
NSN 6130-01-585-2251
NSN 6240-01-026-0032
NSN 6145-00-895-6548
NSN 5925-00-155-2587
NSN 5895-01-181-7175