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 6610-01-558-1815
NSN 5998-01-090-1192
NSN 5960-01-457-7432
NSN 6650-00-432-2358
NSN 5895-01-487-7778
NSN 4140-01-247-9772
NSN 7035-00-179-3924
NSN 5990-00-081-3937
NSN 5975-00-464-0693
NSN 6685-00-516-2173
NSN 6610-01-135-2149
NSN 6130-01-240-8801