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 5905-00-167-6872
NSN 5835-00-554-0399
NSN 6240-01-602-1567
NSN 6610-00-810-8326
NSN 6150-01-630-5639
NSN 6220-00-141-6150
NSN 6320-01-067-0474
NSN 6135-01-440-7774
NSN 5910-00-314-3852
NSN 6150-01-467-6219
NSN 6645-00-171-9639
NSN 4140-01-474-5701