4 notches 0.126 in. Min 0.130 in. Radius equally spaced on the nut periphery, 4 notches 0.312 in. Radius equally spaced on the thread diameter
No other part numbers with same form, fit, and function found.
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5990-01-386-5561
NSN 5960-00-948-1487
NSN 6220-01-273-0934
NSN 6150-01-434-1891
NSN 7035-01-442-7947
NSN 5975-00-953-0378
NSN 5975-01-366-5465
NSN 5945-01-619-4458
NSN 5905-00-567-9468
NSN 5945-01-658-6919
NSN 5960-01-165-1956
NSN 6150-00-340-3203