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 6685-01-325-3028
NSN 4140-01-624-5621
NSN 5835-01-485-0210
NSN 7035-00-442-1869
NSN 5930-01-076-4233
NSN 6650-01-357-0644
NSN 6135-01-168-2944
NSN 5950-01-166-8200
NSN 5999-01-367-6162
NSN 6685-01-634-0611
NSN 5975-00-405-1938
NSN 6110-01-371-3756