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 6320-01-447-3923
NSN 6620-01-480-6887
NSN 5950-01-446-6484
NSN 6135-01-528-6896
NSN 5835-00-711-3371
NSN 5915-01-095-3908
NSN 5935-00-557-9343
NSN 6645-01-025-1002
NSN 5990-01-328-9846
NSN 6135-00-840-6451
NSN 6150-01-479-6561
NSN 5855-01-342-9778