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 6620-00-500-0041
NSN 5925-00-328-3885
NSN 5905-00-190-8889
NSN 6685-01-029-3773
NSN 5915-01-560-5493
NSN 6150-01-518-0604
NSN 6130-00-945-4867
NSN 6150-01-105-4660
NSN 6650-00-031-8467
NSN 6145-01-551-0682
NSN 5920-01-331-4712
NSN 5975-01-012-2591