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 4140-00-205-6491
NSN 6685-00-453-9357
NSN 6135-01-338-2281
NSN 5965-00-957-5200
NSN 2925-01-327-3069
NSN 5945-00-932-5219
NSN 5996-01-633-7979
NSN 4140-00-170-5152
NSN 5935-00-812-2662
NSN 5910-00-203-5373
NSN 6685-01-005-2037
NSN 5945-00-368-8002