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 5960-01-044-9034
NSN 5945-01-062-0800
NSN 5910-00-004-2113
NSN 6145-01-394-3122
NSN 5930-01-514-7429
NSN 6150-00-330-3629
NSN 6685-01-443-5646
NSN 5905-01-351-5678
NSN 6620-00-903-5054
NSN 5950-00-707-6107
NSN 5998-01-332-2040
NSN 6645-00-287-9192