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 6645-01-622-1830
NSN 6320-01-285-1922
NSN 6240-01-069-2688
NSN 4140-01-244-0548
NSN 5999-01-442-3529
NSN 5975-01-303-1398
NSN 5998-01-451-2379
NSN 6610-01-452-2715
NSN 5920-00-940-2912
NSN 6650-01-307-1041
NSN 5990-01-602-6701
NSN 6610-00-732-2488