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 6110-01-408-0015
NSN 2925-01-027-1293
NSN 5905-00-124-9952
NSN 5935-00-916-2309
NSN 6145-00-948-6412
NSN 6145-01-433-6858
NSN 6685-00-839-8623
NSN 6135-01-142-5760
NSN 6220-00-819-7028
NSN 6650-00-131-7284
NSN 6650-01-207-2905
NSN 5965-00-439-1149