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 5998-00-997-1668
NSN 6150-01-146-3412
NSN 5910-00-307-7748
NSN 5905-01-034-3415
NSN 5945-01-016-0997
NSN 5999-01-401-5322
NSN 6130-00-181-1787
NSN 5835-01-268-1924
NSN 6610-01-016-9999
NSN 6685-00-263-4545
NSN 4140-01-286-5632
NSN 6145-00-913-8015