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 5975-01-453-5543
NSN 6220-01-559-1628
NSN 5925-01-538-2336
NSN 6150-01-103-3010
NSN 6145-01-578-8284
NSN 5935-01-391-5692
NSN 7035-01-567-4744
NSN 5985-01-399-0307
NSN 5965-00-932-4591
NSN 4140-01-582-7022
NSN 6650-00-170-5095
NSN 6220-00-312-2007