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 5835-00-568-2956
NSN 6685-01-202-7823
NSN 5905-01-500-7920
NSN 5835-00-191-4793
NSN 5965-00-917-6996
NSN 5910-00-684-6784
NSN 6240-00-762-0795
NSN 5985-01-304-8407
NSN 6145-01-627-8845
NSN 6105-00-133-5633
NSN 5975-01-189-0604
NSN 5990-00-206-3753