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 5985-01-258-4769
NSN 5935-01-493-1745
NSN 6220-01-160-7249
NSN 5905-00-176-2695
NSN 5999-00-151-7264
NSN 2925-00-200-0085
NSN 5960-00-607-0091
NSN 5935-00-003-5196
NSN 5835-01-035-2976
NSN 5950-00-963-9225
NSN 5925-01-277-9592
NSN 5920-01-438-9399