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 5925-00-383-5382
NSN 5895-00-291-4873
NSN 5975-00-401-5365
NSN 5950-01-088-5789
NSN 6135-01-164-3561
NSN 5950-00-048-3412
NSN 5985-00-960-9086
NSN 5905-01-381-2552
NSN 6650-01-102-1452
NSN 5835-00-061-5717
NSN 5985-00-964-7692
NSN 5990-01-588-3999