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 6220-01-426-5579
NSN 6130-01-020-9004
NSN 6645-01-311-9794
NSN 5925-00-060-6732
NSN 5990-01-261-2962
NSN 4140-01-161-8955
NSN 6620-01-415-8550
NSN 5996-01-167-8914
NSN 5835-00-621-3720
NSN 5915-01-386-9578
NSN 5985-01-052-8261
NSN 6610-01-648-9997