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 6135-01-361-1776
NSN 5855-01-380-9950
NSN 6240-00-688-6351
NSN 6610-01-041-1880
NSN 6650-00-061-2232
NSN 5998-00-244-8629
NSN 2925-01-109-1518
NSN 6105-01-452-3490
NSN 6320-00-228-5678
NSN 6645-01-227-0438
NSN 4140-00-279-3148
NSN 5915-00-274-2282