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 4140-01-513-1914
NSN 5920-00-236-1118
NSN 5925-01-045-5316
NSN 6645-01-187-3704
NSN 6320-00-539-9283
NSN 5975-01-381-3543
NSN 6645-01-122-2318
NSN 5835-00-572-7445
NSN 5998-00-171-6586
NSN 5855-01-088-3062
NSN 6110-01-226-5341
NSN 6105-00-779-4108