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 2925-01-004-5627
NSN 5905-01-448-8957
NSN 6110-00-870-5808
NSN 5920-01-151-4368
NSN 5945-00-839-3394
NSN 6645-00-155-2398
NSN 5855-01-264-8599
NSN 5950-01-027-6548
NSN 5920-00-401-7951
NSN 6105-01-529-4771
NSN 6645-00-350-8070
NSN 5990-01-256-8441