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 6130-01-280-3013
NSN 7035-01-416-5910
NSN 6650-01-334-9410
NSN 5950-01-428-9467
NSN 5965-01-602-8072
NSN 5915-01-433-7687
NSN 5930-01-325-6102
NSN 6240-01-032-2408
NSN 5905-01-249-3144
NSN 6320-01-512-2031
NSN 6220-01-043-5175
NSN 6610-01-141-7014