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 4140-00-307-2732
NSN 6645-01-576-9896
NSN 6320-01-274-2501
NSN 6685-01-421-9939
NSN 5855-01-373-7538
NSN 5998-00-146-3853
NSN 5990-01-268-2236
NSN 5998-01-066-3700
NSN 5855-00-832-9341
NSN 5950-00-818-8351
NSN 6320-01-230-8444
NSN 5930-01-410-8296