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 5950-00-784-0475
NSN 5975-01-212-8668
NSN 5935-01-172-2101
NSN 6650-01-451-1372
NSN 2925-01-645-2948
NSN 6650-01-613-1086
NSN 2925-00-080-2124
NSN 6240-00-456-2578
NSN 6645-00-007-5305
NSN 4140-01-360-6744
NSN 6220-01-376-3676
NSN 5990-01-261-2962