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 6620-01-436-3502
NSN 5990-00-105-7831
NSN 5905-01-350-3624
NSN 5965-01-535-0718
NSN 5930-01-199-4237
NSN 5835-01-461-8184
NSN 5835-01-626-9603
NSN 5915-01-474-6197
NSN 6145-01-325-5145
NSN 5965-01-544-9395
NSN 6220-00-269-3783
NSN 5975-01-511-0984