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 5905-00-863-6629
NSN 5965-00-099-0698
NSN 5910-01-063-7096
NSN 5905-01-474-6572
NSN 5925-00-864-6228
NSN 5925-01-046-9213
NSN 5920-01-382-9379
NSN 6320-01-230-8444
NSN 6620-01-481-1358
NSN 6620-01-633-8443
NSN 6320-01-445-5893
NSN 6685-01-146-2255