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 2925-01-116-6838
NSN 6685-00-243-7166
NSN 5960-00-883-5384
NSN 5965-00-275-0491
NSN 6320-01-491-8786
NSN 6645-00-248-5434
NSN 6620-01-152-9453
NSN 5910-01-044-1600
NSN 6610-01-612-4611
NSN 5975-01-186-4268
NSN 5935-01-089-9981
NSN 5990-00-288-1820