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 5895-01-310-8659
NSN 4140-01-014-3454
NSN 6610-01-521-2438
NSN 6685-01-331-7090
NSN 5925-01-436-9833
NSN 5855-01-297-1886
NSN 5999-01-531-0693
NSN 5950-01-352-5805
NSN 6130-01-603-0999
NSN 5855-01-020-7982
NSN 5998-00-314-1284
NSN 5910-01-626-5605