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 5998-01-145-5139
NSN 5960-00-223-8381
NSN 5999-01-487-4515
NSN 4140-01-018-0751
NSN 5975-01-607-2955
NSN 5960-01-109-9480
NSN 6240-00-978-9752
NSN 5985-01-106-4628
NSN 6135-01-507-1135
NSN 6150-01-613-4964
NSN 5905-01-422-2375
NSN 5965-00-626-5346