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 6130-01-060-6511
NSN 5915-00-078-3265
NSN 5965-00-204-8513
NSN 2925-00-941-3708
NSN 4140-00-802-2968
NSN 5950-01-066-5948
NSN 6130-00-073-2994
NSN 5895-00-159-1237
NSN 6150-00-636-8938
NSN 6320-01-607-1491
NSN 5905-01-565-3570
NSN 5996-00-177-8722