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.)
NSN 6685-01-143-1217
NSN 6220-01-399-0633
NSN 5930-01-519-9318
NSN 2925-00-363-9878
NSN 6685-00-889-1579
NSN 5935-01-112-0450
NSN 5915-00-336-6481
NSN 6220-01-432-0089
NSN 5915-01-442-8785
NSN 5910-00-114-1363
NSN 5960-01-200-4621
NSN 6620-00-127-0816