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 2925-01-127-0167
NSN 6220-00-058-5002
NSN 5945-01-406-2899
NSN 5835-01-199-5902
NSN 6620-01-329-5200
NSN 6645-01-102-8127
NSN 6105-00-815-6228
NSN 5935-00-350-5045
NSN 5915-01-492-6600
NSN 6645-01-624-4351
NSN 5910-00-114-1829
NSN 5950-01-157-5403