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 6135-00-422-3967
NSN 5905-01-083-4072
NSN 7035-01-100-2796
NSN 5985-00-058-6744
NSN 6105-01-114-2438
NSN 5985-01-483-7291
NSN 6135-01-633-8502
NSN 6645-01-478-2140
NSN 5905-01-303-9938
NSN 7035-01-432-9034
NSN 6685-01-355-1120
NSN 5935-01-648-6147