Used on a wheel lug; counter terrorist assault platform
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 5990-00-752-2126
NSN 7035-01-291-6468
NSN 7035-01-204-9609
NSN 5895-01-279-0211
NSN 5925-00-732-7530
NSN 5855-00-973-5717
NSN 4140-00-376-5712
NSN 6240-01-568-3789
NSN 5915-00-959-4379
NSN 6610-00-915-3215
NSN 5895-01-292-0650
NSN 4140-01-567-1788