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 6645-00-489-8575
NSN 4140-01-389-6444
NSN 5920-01-223-3734
NSN 5930-01-335-8950
NSN 5975-01-068-4125
NSN 5996-00-332-2438
NSN 5985-01-301-3925
NSN 5855-00-869-3635
NSN 6645-01-613-7389
NSN 6320-00-116-3658
NSN 6240-01-501-5688
NSN 5835-01-172-5884