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 5905-01-191-5411
NSN 6645-01-510-3496
NSN 5855-00-127-5559
NSN 6650-00-903-5419
NSN 5915-01-237-9860
NSN 6645-01-334-0782
NSN 6105-01-007-8425
NSN 5965-01-629-0975
NSN 6610-01-499-0776
NSN 6145-01-444-3548
NSN 6645-00-417-1998
NSN 2925-00-898-9135