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 6240-01-599-0652
NSN 4140-01-067-4317
NSN 5990-01-248-8222
NSN 5905-01-085-9726
NSN 5855-01-093-8202
NSN 6145-01-598-1823
NSN 6620-01-498-4780
NSN 6220-00-391-1076
NSN 2925-01-424-7674
NSN 6105-01-529-5705
NSN 5855-01-482-6164
NSN 5975-00-732-7911