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 5975-00-159-0969
NSN 5998-00-148-8873
NSN 5915-01-207-1416
NSN 6240-00-050-4522
NSN 6135-01-136-8306
NSN 5950-01-529-6542
NSN 5855-01-436-7621
NSN 6685-00-838-0552
NSN 5960-01-125-2356
NSN 5855-00-560-0110
NSN 6145-01-396-0060
NSN 6150-00-988-5768