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 6240-01-340-2630
NSN 5905-01-461-2392
NSN 6685-01-397-6721
NSN 5855-00-125-0780
NSN 5930-01-138-3235
NSN 5910-01-237-3725
NSN 5999-00-806-5162
NSN 6145-01-353-7407
NSN 5999-00-229-8840
NSN 5975-01-534-2331
NSN 6650-00-992-4540
NSN 6130-01-158-6579