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 5965-01-392-6511
NSN 6320-01-189-5024
NSN 5905-01-157-6627
NSN 5990-01-599-4721
NSN 7035-01-336-0464
NSN 5935-01-232-1257
NSN 5996-01-533-7803
NSN 5965-00-393-1294
NSN 5920-01-323-2209
NSN 6320-00-937-5625
NSN 5975-00-153-0050
NSN 5855-01-213-0783