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 6150-01-261-7945
NSN 5910-01-012-6813
NSN 5910-00-282-7918
NSN 7035-01-346-8800
NSN 5920-01-255-8851
NSN 6145-01-615-5329
NSN 5975-01-114-8071
NSN 6150-01-415-5864
NSN 7035-01-468-6532
NSN 6130-01-534-6253
NSN 5910-01-076-4454
NSN 5975-01-063-7577