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 6145-01-135-8243
NSN 5835-01-150-6084
NSN 5895-01-555-7562
NSN 5920-00-224-8091
NSN 6685-01-029-3773
NSN 7035-01-618-1438
NSN 5930-01-213-1002
NSN 6145-01-024-9466
NSN 5930-01-260-6519
NSN 5930-01-330-3443
NSN 5895-00-805-9179
NSN 6610-01-398-8092