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 5985-00-432-5461
NSN 5945-01-012-1752
NSN 6130-00-417-9759
NSN 6620-01-603-0852
NSN 5945-01-114-1288
NSN 6135-01-441-5746
NSN 5895-00-086-8772
NSN 5975-00-711-8805
NSN 6135-00-112-8637
NSN 5996-01-286-4935
NSN 2925-01-209-3584
NSN 6620-01-572-4486