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 5990-01-311-7491
NSN 6685-01-519-9250
NSN 5990-01-411-5930
NSN 5950-01-148-6856
NSN 5998-01-058-0102
NSN 2925-01-271-6234
NSN 5950-01-230-4685
NSN 6110-01-431-5770
NSN 5945-01-210-9838
NSN 6620-01-401-5356
NSN 6620-01-314-8990
NSN 6110-01-464-0236