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 6685-01-210-2535
NSN 7035-01-058-1935
NSN 6145-01-087-5860
NSN 5895-00-222-5043
NSN 2925-01-440-9912
NSN 6685-01-089-7403
NSN 5950-01-583-6563
NSN 6320-01-496-4605
NSN 6220-01-104-5604
NSN 5915-00-244-1702
NSN 7035-01-271-1643
NSN 5895-01-358-2810