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 6610-00-049-6497
NSN 5990-00-678-6006
NSN 6110-00-111-4055
NSN 6645-01-308-0227
NSN 6240-01-320-1308
NSN 5996-00-288-1829
NSN 6650-01-481-3618
NSN 5950-00-767-2379
NSN 6220-01-207-8068
NSN 5905-01-349-2835
NSN 5935-01-190-7059
NSN 6135-01-300-8455