Air valve hex nut
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.)
NSN 6620-01-015-2470
NSN 6240-00-419-3196
NSN 6145-00-336-1986
NSN 4140-00-421-9772
NSN 5910-01-092-2196
NSN 6650-01-152-7071
NSN 5835-01-462-5983
NSN 5905-01-333-1436
NSN 5999-01-592-7019
NSN 6150-01-509-4920
NSN 5998-01-475-8104
NSN 5999-00-629-1336