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: Nuts of iron or steel
NSN 5990-00-033-8128
NSN 4140-00-481-3858
NSN 6240-01-512-8129
NSN 6685-01-187-5452
NSN 5835-01-310-8979
NSN 6150-01-600-1027
NSN 6240-01-142-2963
NSN 6320-01-312-0964
NSN 5920-00-529-0618
NSN 5905-00-953-1908
NSN 7035-00-104-7613
NSN 5975-01-519-8326