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 5925-01-012-1890
NSN 6240-01-502-7883
NSN 6220-01-241-4625
NSN 6645-01-045-4088
NSN 5905-00-825-1184
NSN 6650-00-820-4577
NSN 6610-01-273-9317
NSN 5855-01-601-2399
NSN 5990-00-942-6543
NSN 6645-00-547-4388
NSN 5915-00-115-8482
NSN 6130-01-440-5166