Nut countersunk and chamfered both ends
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: Articles of aluminum nesoi
NSN 4140-01-205-3303
NSN 5910-01-310-9716
NSN 5905-00-949-2211
NSN 5945-01-157-9953
NSN 5965-01-331-6378
NSN 6110-00-205-1778
NSN 6150-01-550-1738
NSN 5990-01-133-0351
NSN 6135-01-110-9470
NSN 5915-01-633-9845
NSN 5975-00-530-3751
NSN 5895-00-276-7916