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 4140-01-443-2391
NSN 5935-01-099-2438
NSN 5935-00-079-0084
NSN 5950-01-488-4891
NSN 5915-01-261-7839
NSN 5965-01-200-6613
NSN 6620-01-601-7491
NSN 6685-01-217-7870
NSN 5920-00-078-2132
NSN 5915-01-561-4255
NSN 5999-01-385-8695
NSN 5835-01-588-6533