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 5965-00-973-9974
NSN 6620-01-371-1655
NSN 5985-00-186-8755
NSN 7035-00-535-8109
NSN 2925-01-139-5144
NSN 6610-00-701-2600
NSN 5996-00-806-1566
NSN 6220-01-365-1319
NSN 5990-00-366-0112
NSN 5835-01-485-0210
NSN 6220-00-528-7752
NSN 6620-00-458-8266