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 7035-00-574-4223
NSN 2925-01-208-0711
NSN 5960-01-518-4440
NSN 6240-00-395-0019
NSN 5835-01-364-6830
NSN 4140-01-222-6539
NSN 5910-01-403-2812
NSN 5999-01-431-5815
NSN 6135-01-020-3805
NSN 5960-01-553-4557
NSN 5855-01-499-6147
NSN 5910-00-721-3660