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 4140-00-439-4100
NSN 5998-01-090-0724
NSN 6150-01-081-4449
NSN 6220-01-627-3453
NSN 5996-01-313-2644
NSN 5855-01-254-3110
NSN 5950-01-521-4492
NSN 6650-01-432-8992
NSN 6610-01-347-3005
NSN 5855-01-502-9403
NSN 5935-01-056-5079
NSN 6150-01-487-7756