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 2925-01-446-6523
NSN 6110-01-367-6526
NSN 5996-01-325-7897
NSN 5996-00-068-5604
NSN 6220-01-237-2488
NSN 5915-01-016-0505
NSN 5855-00-491-7079
NSN 5998-01-014-0016
NSN 7035-01-359-3915
NSN 6240-01-361-8138
NSN 7035-01-283-2536
NSN 5975-00-114-5031