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 4140-00-555-3856
NSN 6650-00-168-1502
NSN 5985-01-563-0197
NSN 5915-01-257-4714
NSN 6135-00-826-4798
NSN 6320-00-925-0558
NSN 6620-00-777-2653
NSN 6110-00-744-1301
NSN 5910-00-851-1275
NSN 6320-01-622-5493
NSN 5960-01-023-8800
NSN 5920-01-053-0987