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 5975-01-583-2693
NSN 6685-00-492-9817
NSN 4140-01-386-8914
NSN 5895-01-203-7320
NSN 6145-01-250-2006
NSN 5965-00-208-4896
NSN 5905-01-502-5577
NSN 6110-01-045-7482
NSN 5975-01-412-0782
NSN 5960-01-599-9821
NSN 5985-01-648-2503
NSN 5895-01-174-3355