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 6645-00-230-4396
NSN 4140-01-347-0060
NSN 5945-01-337-9150
NSN 5895-00-231-4233
NSN 6145-01-590-4140
NSN 6685-01-297-7983
NSN 4140-01-057-4152
NSN 6610-00-495-9053
NSN 6145-01-042-4621
NSN 5915-01-275-2017
NSN 6135-00-334-4500
NSN 5990-00-223-5938