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 5925-01-491-0509
NSN 5895-00-907-0761
NSN 5990-01-106-3786
NSN 6145-00-929-9406
NSN 4140-01-442-3063
NSN 6220-01-386-5613
NSN 2925-01-628-7580
NSN 6150-01-562-6966
NSN 6645-01-205-0549
NSN 5945-00-798-4119
NSN 5835-01-346-1386
NSN 6135-00-170-8819