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 6320-01-547-2743
NSN 6645-01-417-6031
NSN 5855-01-247-9666
NSN 4140-01-367-3108
NSN 5915-01-169-4091
NSN 6620-01-132-9678
NSN 5935-01-543-3414
NSN 6620-01-125-8904
NSN 6645-00-171-9639
NSN 5895-01-026-1252
NSN 6645-01-576-9896
NSN 5925-00-597-1558