1 7/16 in x 12 un jam hex nut
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 6220-01-559-1653
NSN 5895-00-867-6853
NSN 5965-00-417-8182
NSN 6135-01-519-7879
NSN 5998-00-411-2549
NSN 6610-01-167-8747
NSN 5985-01-123-3002
NSN 6685-00-192-1461
NSN 5930-00-480-4956
NSN 5905-01-414-9976
NSN 5835-01-363-4527
NSN 6610-00-100-1195