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 5895-01-275-0845
NSN 5910-01-641-0300
NSN 5990-00-497-9234
NSN 5910-00-111-0697
NSN 2925-01-478-8191
NSN 5855-00-688-9954
NSN 6130-00-449-1201
NSN 5920-00-196-0302
NSN 5905-01-152-1226
NSN 5920-00-725-1804
NSN 5925-01-231-5423
NSN 5999-01-497-9571