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 6620-01-098-2960
NSN 6320-01-592-6248
NSN 7035-01-483-1200
NSN 5998-00-219-4186
NSN 5925-01-095-9990
NSN 5915-01-435-3420
NSN 4140-00-114-3924
NSN 4140-00-934-8800
NSN 6610-01-051-8484
NSN 5965-01-381-2998
NSN 5905-00-538-4505
NSN 6620-01-101-4408