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 4140-01-455-5170
NSN 5915-01-268-8037
NSN 6105-01-344-7302
NSN 5950-00-926-3304
NSN 6320-01-600-5808
NSN 5930-00-456-0889
NSN 5945-01-222-7454
NSN 5960-01-235-7032
NSN 6135-01-449-0625
NSN 5996-01-238-7973
NSN 5925-01-194-3025
NSN 5999-00-201-5900