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 5855-01-125-9167
NSN 6645-00-004-8628
NSN 4140-01-123-8801
NSN 5915-00-359-7776
NSN 6220-00-432-9402
NSN 5950-01-081-1830
NSN 6150-01-088-1939
NSN 6610-01-582-0423
NSN 5905-01-444-1764
NSN 6240-01-653-3221
NSN 5990-01-054-3332
NSN 5945-00-888-3710