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 4140-01-519-6178
NSN 6320-01-388-1067
NSN 5998-00-350-2514
NSN 6685-00-222-8216
NSN 6645-00-075-4764
NSN 5925-01-056-5127
NSN 6685-01-050-2201
NSN 5945-00-176-0545
NSN 5855-00-908-9314
NSN 5915-00-699-4492
NSN 5930-00-845-0639
NSN 5930-01-445-5707