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 6220-01-331-3468
NSN 6110-01-208-8257
NSN 5855-01-442-9490
NSN 5999-00-960-7155
NSN 6105-00-553-8943
NSN 5990-01-227-0660
NSN 6240-00-103-0058
NSN 5945-01-312-9416
NSN 6220-00-956-0565
NSN 2925-01-359-4027
NSN 5945-01-376-5325
NSN 6240-00-729-9696