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 5990-01-443-2931
NSN 6135-00-643-4843
NSN 6645-01-028-2186
NSN 6110-00-009-9334
NSN 5960-00-130-6945
NSN 5960-00-587-7517
NSN 5920-01-437-9645
NSN 7035-01-476-7787
NSN 5935-01-381-5648
NSN 7035-01-088-6415
NSN 6145-00-252-8969
NSN 5910-01-025-3357