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 5855-00-797-8217
NSN 5960-00-813-3781
NSN 6105-01-288-5003
NSN 6685-01-065-0530
NSN 6645-01-363-1395
NSN 5905-01-123-6029
NSN 6685-00-779-0774
NSN 6110-00-088-1128
NSN 4140-01-152-9161
NSN 6610-01-032-5335
NSN 6105-01-513-5929
NSN 6240-01-281-7249