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 6320-01-631-7828
NSN 5895-00-466-1676
NSN 5905-00-478-4387
NSN 6320-01-177-3192
NSN 5925-01-485-7539
NSN 6240-00-189-2762
NSN 6645-01-010-3746
NSN 4140-01-106-2215
NSN 7035-01-655-3275
NSN 6220-01-401-5337
NSN 5855-00-494-9581
NSN 6135-00-223-9563