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 6105-00-957-5703
NSN 6685-00-671-3483
NSN 5925-00-516-2449
NSN 5930-00-733-5974
NSN 6620-01-424-6925
NSN 6620-01-163-3329
NSN 5965-00-772-8024
NSN 5996-01-633-7979
NSN 6240-01-644-7623
NSN 5920-01-444-3961
NSN 5975-01-538-0604
NSN 6610-01-421-4396