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 6645-01-566-3205
NSN 6610-01-180-7558
NSN 6150-00-419-0505
NSN 6240-01-268-7104
NSN 6240-01-423-0605
NSN 6145-01-398-3125
NSN 5950-00-408-3519
NSN 5915-01-384-3858
NSN 5920-00-206-3595
NSN 5990-01-482-5950
NSN 6145-00-378-3836
NSN 6620-01-448-8926