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 5910-00-568-5562
NSN 5915-00-468-3911
NSN 6135-00-715-4001
NSN 6320-01-454-1965
NSN 5925-01-350-3646
NSN 6130-01-600-1535
NSN 6110-01-460-9078
NSN 6650-01-468-6889
NSN 5985-01-043-6383
NSN 6150-01-529-6815
NSN 6110-01-302-0569
NSN 6650-01-269-8987