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 5855-01-488-6571
NSN 5960-01-495-0859
NSN 5925-01-101-3386
NSN 5965-01-361-9760
NSN 6645-00-192-1152
NSN 7035-01-158-7673
NSN 6320-01-631-7828
NSN 5905-00-583-3287
NSN 6645-00-470-5310
NSN 5910-00-682-3121
NSN 4140-01-400-3610
NSN 6240-01-096-9121