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 4140-01-646-1617
NSN 6135-01-167-0759
NSN 6650-00-950-4107
NSN 5990-00-650-9008
NSN 5910-00-478-5901
NSN 5920-00-539-7847
NSN 6105-01-157-7011
NSN 5975-01-323-1483
NSN 5975-01-202-7423
NSN 5998-01-439-9868
NSN 5930-00-964-9297
NSN 6145-00-583-9989