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 2925-01-354-1752
NSN 5965-00-840-8849
NSN 6645-01-227-9429
NSN 6150-01-415-5625
NSN 5935-01-091-4020
NSN 5920-01-350-3163
NSN 6320-01-512-2031
NSN 5990-00-105-7831
NSN 6110-01-278-1366
NSN 6150-01-430-1141
NSN 6685-01-412-0767
NSN 5998-00-499-3138