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: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6150-00-676-0981
NSN 4140-01-271-6960
NSN 5905-01-592-1918
NSN 6130-01-160-8430
NSN 5990-01-320-1412
NSN 6650-00-641-6139
NSN 5975-01-170-7837
NSN 6220-01-276-2102
NSN 6610-00-814-0574
NSN 5920-01-562-6681
NSN 5905-01-542-9115
NSN 5915-01-103-4556