One side undercut 0.318 in. Lg, 0.085 in. Dp
No other part numbers with same form, fit, and function found.
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 6645-01-554-7557
NSN 5915-01-423-4185
NSN 5905-01-621-2412
NSN 6620-01-565-9630
NSN 5905-01-622-4909
NSN 2925-01-127-0167
NSN 5910-00-646-6186
NSN 6135-01-554-4281
NSN 6650-01-509-4948
NSN 4140-01-577-8762
NSN 5855-00-821-7512
NSN 6110-01-486-0848