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 6110-01-457-3731
NSN 6145-01-461-9541
NSN 5999-01-016-7676
NSN 5945-00-116-8887
NSN 6130-00-732-4258
NSN 5965-00-100-1291
NSN 5975-01-223-2912
NSN 2925-00-767-4245
NSN 5975-00-269-8391
NSN 5935-00-789-2856
NSN 6685-01-383-1178
NSN 4140-01-242-8254