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 5950-00-060-6904
NSN 5996-01-101-4673
NSN 6320-01-429-9871
NSN 5950-01-444-1302
NSN 5915-00-186-9346
NSN 6150-00-601-6683
NSN 5835-00-126-2961
NSN 5985-01-410-3435
NSN 5905-01-621-1464
NSN 5920-01-616-1595
NSN 5895-00-276-0596
NSN 6650-00-535-6923