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 5975-01-217-8545
NSN 6685-01-068-4446
NSN 6130-01-110-2351
NSN 6650-01-433-3056
NSN 7035-00-281-4082
NSN 6610-00-186-9180
NSN 6240-01-262-0149
NSN 5835-01-390-4667
NSN 5925-01-252-0830
NSN 6610-01-460-2785
NSN 5998-00-899-5669
NSN 4140-00-106-6780