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 5910-01-089-0416
NSN 5915-01-136-4035
NSN 5910-01-431-7059
NSN 6685-01-012-7556
NSN 6610-00-278-7496
NSN 5950-01-157-8898
NSN 5960-01-216-7004
NSN 6320-00-164-4087
NSN 6620-01-430-2212
NSN 5935-01-058-8904
NSN 6320-00-070-4544
NSN 6135-00-223-9563