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 5905-01-499-0164
NSN 6620-01-593-0817
NSN 5950-01-560-5543
NSN 5985-01-121-5624
NSN 4140-01-591-5180
NSN 6650-01-399-8552
NSN 6685-01-582-5821
NSN 6135-01-633-8502
NSN 5998-01-165-3662
NSN 6650-00-994-9843
NSN 2925-00-918-0859
NSN 6650-01-260-8690