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 5985-00-977-5938
NSN 6685-00-401-2347
NSN 5965-01-615-3420
NSN 4140-01-193-4841
NSN 6135-01-435-6503
NSN 6240-00-589-4515
NSN 5935-00-849-1693
NSN 5996-01-546-6768
NSN 5835-00-905-7165
NSN 6110-01-633-9660
NSN 5965-00-647-3972
NSN 4140-00-805-5535