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 5835-01-618-7621
NSN 5920-00-691-7727
NSN 4140-01-369-8641
NSN 6620-00-690-3554
NSN 6220-01-611-7520
NSN 5998-00-551-3118
NSN 5835-01-416-6455
NSN 6650-01-305-8079
NSN 5999-00-110-9352
NSN 6110-01-071-6019
NSN 6320-01-155-8295
NSN 6145-00-042-3800