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 6240-01-313-9000
NSN 6610-01-613-8805
NSN 6685-00-811-3961
NSN 4140-01-641-2208
NSN 7035-01-633-9537
NSN 7035-01-617-0072
NSN 5905-01-325-3837
NSN 6110-00-271-9928
NSN 5975-01-605-4552
NSN 5975-00-140-8864
NSN 5990-01-426-7350
NSN 6320-01-371-3047