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 5965-01-335-6630
NSN 5925-01-338-0969
NSN 6130-00-297-5793
NSN 5965-01-207-0991
NSN 5998-00-338-9158
NSN 5930-01-630-3661
NSN 6650-00-891-9323
NSN 4140-01-389-2170
NSN 5905-00-409-3014
NSN 6135-01-625-0765
NSN 5855-00-560-0110
NSN 5950-00-600-0754