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 6650-00-431-9541
NSN 4140-01-503-5743
NSN 5975-00-156-0416
NSN 5965-00-636-4926
NSN 5996-00-518-0460
NSN 5895-01-587-8295
NSN 5996-00-392-7626
NSN 5915-01-159-5014
NSN 6145-01-502-2183
NSN 7035-00-510-3778
NSN 6130-01-158-5512
NSN 5990-01-299-2014