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 5905-00-521-2800
NSN 5855-00-455-6070
NSN 5905-00-841-4593
NSN 6320-01-054-3046
NSN 5915-01-044-5260
NSN 5990-00-686-4659
NSN 6610-00-222-4108
NSN 5915-01-563-8054
NSN 5965-01-185-2026
NSN 5925-00-186-8669
NSN 6135-01-408-0313
NSN 6620-00-239-0611