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 5965-01-175-4839
NSN 5998-01-007-7231
NSN 6150-00-914-7107
NSN 6610-01-227-1692
NSN 6145-01-264-9199
NSN 5920-00-224-5540
NSN 2925-01-386-7392
NSN 6685-00-869-9356
NSN 7035-01-441-9509
NSN 5950-01-105-5292
NSN 6645-00-518-2068
NSN 6110-00-161-4115