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 6145-01-573-1751
NSN 5998-01-299-8670
NSN 6220-01-122-3155
NSN 6685-01-111-8712
NSN 5950-01-578-4800
NSN 6645-01-367-1316
NSN 4140-01-449-4193
NSN 5855-01-250-2421
NSN 6645-01-274-0206
NSN 6645-00-175-8156
NSN 5975-00-351-7822
NSN 7035-01-512-2453