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 6110-01-398-1507
NSN 6620-01-254-3609
NSN 5960-01-575-7818
NSN 5975-00-820-9144
NSN 5950-00-099-1046
NSN 6110-01-121-8318
NSN 6130-01-535-6195
NSN 5915-00-410-5126
NSN 6610-00-331-3460
NSN 6650-00-474-7420
NSN 6110-01-209-9964
NSN 5990-00-779-4175