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 5999-01-501-9023
NSN 6135-01-299-0778
NSN 5925-01-343-6225
NSN 6650-00-680-9595
NSN 5945-01-149-5228
NSN 5935-01-143-8405
NSN 5905-01-004-4088
NSN 5965-01-487-4479
NSN 6650-01-259-0918
NSN 5945-00-363-9481
NSN 6650-00-451-1088
NSN 5965-01-118-6302