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 4140-00-420-0251
NSN 6105-00-527-7702
NSN 6110-01-454-3545
NSN 6620-00-148-9613
NSN 6645-01-659-1583
NSN 5990-01-434-7913
NSN 4140-00-472-1739
NSN 5855-01-444-3916
NSN 6320-00-149-7570
NSN 5925-01-330-1358
NSN 5855-01-356-5284
NSN 5930-00-609-6940