Cage 3s597 does not sell to the government
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.)
NSN 6130-01-066-1802
NSN 5999-00-466-1072
NSN 6150-01-559-9375
NSN 5915-00-546-0870
NSN 6135-01-546-4588
NSN 6645-00-155-2398
NSN 6650-00-312-1200
NSN 5915-01-130-8735
NSN 4140-01-455-2290
NSN 5945-00-143-4422
NSN 6620-00-939-0462
NSN 6610-01-018-9122