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 5965-01-196-1526
NSN 5930-00-141-9957
NSN 5960-01-350-4288
NSN 6645-01-043-9587
NSN 5895-01-659-5965
NSN 6320-01-578-6006
NSN 6685-01-620-8523
NSN 6220-01-452-8785
NSN 5930-01-229-4719
NSN 6610-01-156-0810
NSN 5975-01-477-2911
NSN 6110-00-231-3751