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.)
Classification: Nuts of iron or steel
NSN 6650-01-500-1756
NSN 5990-00-027-7508
NSN 6620-01-658-5768
NSN 6145-01-012-2557
NSN 5998-00-222-7755
NSN 5915-00-530-4493
NSN 5965-01-208-3488
NSN 6610-01-570-3185
NSN 5996-01-033-6585
NSN 6110-01-180-9675
NSN 6150-00-530-3046
NSN 6240-01-388-2413