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 6130-01-461-1563
NSN 6130-01-442-8759
NSN 5996-00-957-7923
NSN 6130-01-644-7721
NSN 6685-01-055-0823
NSN 6650-00-578-6543
NSN 5930-01-347-3252
NSN 5996-00-683-0674
NSN 6650-01-143-1116
NSN 5905-01-105-9904
NSN 5895-01-493-1823
NSN 6610-00-814-8598