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 4140-01-432-0292
NSN 6110-01-091-5348
NSN 5945-01-442-4320
NSN 5999-01-166-7028
NSN 4140-01-131-1110
NSN 6650-01-541-5930
NSN 5998-01-122-5802
NSN 5945-01-068-0385
NSN 6650-01-415-3332
NSN 6135-00-947-0406
NSN 6685-01-346-2213
NSN 6150-01-041-8377