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 5855-01-451-2992
NSN 4140-00-493-9675
NSN 5990-01-433-3786
NSN 5910-00-079-0031
NSN 5985-01-139-4667
NSN 5999-01-649-7824
NSN 6150-01-284-4262
NSN 5925-01-551-8196
NSN 5999-00-251-0834
NSN 7035-00-890-7649
NSN 6645-00-276-7544
NSN 5965-01-492-0274