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 6145-01-420-3630
NSN 6645-01-437-7770
NSN 4140-01-487-8562
NSN 5985-01-464-4852
NSN 6135-00-823-3034
NSN 5998-00-962-7408
NSN 5925-01-573-6136
NSN 6650-01-115-7981
NSN 5930-01-142-2571
NSN 6320-01-418-6681
NSN 5835-01-471-2861
NSN 5999-01-211-0067