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 5999-01-342-4979
NSN 5835-01-422-2399
NSN 5905-01-431-9807
NSN 6135-01-315-9214
NSN 5925-00-369-7747
NSN 5950-00-112-7200
NSN 5920-00-421-6447
NSN 5930-01-495-1925
NSN 5985-01-472-4078
NSN 6610-01-278-9387
NSN 6135-00-452-2266
NSN 5975-01-352-6449