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 5999-00-466-3226
NSN 5975-01-378-0889
NSN 6240-01-236-0781
NSN 6130-01-430-2452
NSN 5975-01-526-1586
NSN 6685-01-448-4056
NSN 6135-00-268-8492
NSN 6150-01-341-7762
NSN 5998-01-253-2859
NSN 6620-01-618-9854
NSN 5950-01-139-5266
NSN 6150-01-515-7747