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 6685-01-545-1907
NSN 6645-01-514-7403
NSN 6145-01-585-6780
NSN 5855-01-100-3272
NSN 5905-01-421-2408
NSN 5930-01-224-8053
NSN 6650-00-009-1427
NSN 6610-01-422-2376
NSN 5835-00-239-9619
NSN 5950-01-359-1997
NSN 5975-01-383-9449
NSN 6650-00-760-1385