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 6320-01-512-2031
NSN 5945-01-117-2422
NSN 5996-01-367-9431
NSN 5985-01-546-0622
NSN 5960-00-188-8648
NSN 5925-00-612-7159
NSN 4140-01-117-0840
NSN 5950-01-035-5336
NSN 5855-01-263-7669
NSN 5935-01-252-4641
NSN 5895-01-653-8087
NSN 5920-00-895-3270