A nut, flat on top and bottom, having 4 flat sides. 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: Nuts of iron or steel
NSN 6320-01-323-1947
NSN 4140-01-305-5806
NSN 5905-00-044-6051
NSN 4140-01-248-4610
NSN 5975-01-111-1065
NSN 5945-01-215-4739
NSN 4140-00-450-9874
NSN 5975-01-112-8380
NSN 5990-01-215-5997
NSN 6150-00-444-5109
NSN 5965-01-095-1926
NSN 6645-01-142-8502