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 2925-00-391-0331
NSN 6130-00-497-4789
NSN 6240-01-223-0115
NSN 5965-01-029-5222
NSN 5910-01-538-6017
NSN 5920-00-284-8435
NSN 6145-01-098-0125
NSN 6645-01-344-8702
NSN 6150-01-480-8240
NSN 5935-01-481-6081
NSN 5935-01-048-1721
NSN 5910-01-511-4464