A nut, flat on top and bottom, having eight flat sides. It may include a retaining dowel pin. 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 6650-00-009-9510
NSN 6620-01-606-8964
NSN 6650-01-375-0507
NSN 6685-00-451-6941
NSN 5920-00-069-7624
NSN 5998-01-451-4690
NSN 5945-00-468-5740
NSN 6135-01-502-5787
NSN 5999-00-932-2509
NSN 6610-01-291-4173
NSN 6130-00-377-0655
NSN 5935-00-275-0888