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 5960-01-178-3845
NSN 6110-01-504-1271
NSN 6110-00-403-9530
NSN 6610-01-434-0037
NSN 6645-01-561-5930
NSN 6135-01-619-1582
NSN 2925-01-483-9147
NSN 6130-00-109-9091
NSN 5990-00-467-7431
NSN 6110-01-506-7679
NSN 6220-00-707-5044
NSN 5996-01-463-8197