1 1/4-20 unc 2b fit hole 1 in. From both sides of center hole
A nut, flat on top and bottom, having four flat sides of which two parallel sides are shorter than the other two. For items having a thickness (or height) exceeding two times the width, use post, electrical-mechanical equipment. (when height or thickness and/or width is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-00-690-5288
NSN 5998-01-471-8428
NSN 5999-01-454-0463
NSN 4140-00-811-2297
NSN 6240-00-983-4583
NSN 6650-01-423-9772
NSN 6620-01-609-6259
NSN 5945-01-445-4138
NSN 5998-00-617-9020
NSN 6620-00-257-2783
NSN 6130-01-502-9387
NSN 5935-00-045-8256