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 5925-01-604-7246
NSN 6240-00-092-3186
NSN 6650-01-433-3056
NSN 5935-00-483-0282
NSN 7035-00-870-0290
NSN 6135-01-534-3007
NSN 5945-01-268-4265
NSN 2925-01-483-2389
NSN 6105-00-165-4236
NSN 6105-01-336-9316
NSN 5895-01-378-8169
NSN 6220-00-876-2931