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 6145-00-257-6820
NSN 6650-01-186-2426
NSN 5999-01-519-2442
NSN 5975-00-822-7022
NSN 5990-01-299-2014
NSN 5920-01-483-1537
NSN 4140-01-538-6011
NSN
NSN 5835-01-485-0210
NSN 6685-00-940-0852
NSN 6620-01-158-5111
NSN 5996-01-344-9279