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 5999-01-168-6173
NSN 6220-01-284-6347
NSN 5950-00-921-6452
NSN 6150-01-224-9020
NSN 5905-01-392-6360
NSN 6150-00-986-4063
NSN 4140-01-584-0930
NSN 5950-01-088-5996
NSN 5855-00-149-0766
NSN 6645-01-281-7254
NSN 6150-01-408-4284
NSN 6105-01-330-2534