Used on pacer dawn-requested namewas jam nut
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.)
NSN 6220-01-415-4854
NSN 6610-01-447-1082
NSN 6145-01-084-6118
NSN 5950-01-386-4259
NSN 6105-01-135-4646
NSN 6685-00-984-1302
NSN 6620-01-034-1697
NSN 5835-01-561-2959
NSN 6320-01-488-5581
NSN 5950-00-525-9611
NSN 5835-01-481-4204
NSN 5915-01-594-3616