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 6685-01-311-3855
NSN 6240-00-172-8451
NSN 5950-01-530-9736
NSN 6145-01-076-7258
NSN 5945-01-483-9601
NSN 5835-00-901-4932
NSN 6145-01-101-6178
NSN 6105-00-144-1754
NSN 5855-00-298-0261
NSN 5915-01-141-9546
NSN 6150-01-515-2467
NSN 6645-00-853-0073