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 5950-01-352-5230
NSN 5960-01-442-9304
NSN 2925-01-381-5307
NSN 5999-00-955-5704
NSN 5930-01-322-8220
NSN 5925-01-629-2802
NSN 5999-01-564-9035
NSN 5950-01-382-8209
NSN 5935-00-922-2982
NSN 5965-01-561-6782
NSN 6130-01-114-1492
NSN 5915-01-243-0624