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 5930-00-156-3700
NSN 6150-01-132-2487
NSN 5945-01-207-0825
NSN 5915-01-433-2128
NSN 5915-00-933-2354
NSN 5925-01-373-7068
NSN 6320-00-110-8005
NSN 6110-01-179-7024
NSN 5950-00-171-2894
NSN 6105-01-592-3213
NSN 6130-01-158-5512
NSN 5996-00-147-4120