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 5920-01-611-8021
NSN 6645-00-876-4413
NSN 6645-00-130-8464
NSN 5855-01-134-7106
NSN 6150-00-753-3950
NSN 5945-00-541-7833
NSN 6220-00-901-2097
NSN 5965-01-381-2998
NSN 6685-01-102-8358
NSN 5960-01-077-4553
NSN 5999-01-480-0426
NSN 6135-00-840-6451