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 5925-01-517-2402
NSN 6135-01-609-6476
NSN 6240-01-577-7170
NSN 6650-01-165-2175
NSN 5965-00-905-6895
NSN 5950-00-348-6740
NSN 5855-00-879-5849
NSN 5905-01-272-5896
NSN 6610-01-390-6925
NSN 5905-01-217-9745
NSN 5905-01-306-7575
NSN 5965-00-822-3284