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 5996-01-541-4121
NSN 5975-01-633-8182
NSN 5990-01-386-5561
NSN 5915-01-533-0591
NSN 6135-01-435-6503
NSN 5960-00-344-9588
NSN 6220-00-160-1298
NSN 5996-01-512-0800
NSN 6645-01-132-1862
NSN 6610-00-824-3376
NSN 6240-00-201-9011
NSN 6110-01-392-8049