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 4140-00-287-5476
NSN 5998-01-182-2909
NSN 6145-01-528-4181
NSN 5925-00-004-4068
NSN 5985-01-166-8291
NSN 4140-00-307-2732
NSN 5915-00-928-8267
NSN 6650-00-287-5868
NSN 5998-01-472-9765
NSN 6320-01-445-5893
NSN 6240-01-013-8895
NSN 5925-01-655-0824