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 6620-01-562-6865
NSN 5996-01-415-3098
NSN 5945-01-370-1823
NSN 6145-00-076-9324
NSN 5975-01-112-6611
NSN 6650-01-425-1934
NSN 5996-00-250-6556
NSN 6645-01-425-2330
NSN 5945-00-813-2868
NSN 5965-01-318-9474
NSN 5935-01-641-3751
NSN 6220-00-205-2040