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.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 2925-00-898-9135
NSN 5855-01-392-3734
NSN 6320-01-374-9924
NSN 5975-00-364-6919
NSN 6610-01-076-2437
NSN 5905-00-117-0863
NSN 5905-01-320-9170
NSN 5950-01-371-7013
NSN 6645-00-909-2143
NSN 6320-01-475-7654
NSN 6685-01-245-0388
NSN 6145-01-155-6692