Appleton bl50; diameter 1.125 inches
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 6145-01-320-7264
NSN 5835-01-157-5886
NSN 4140-01-227-9726
NSN 5855-00-256-5562
NSN 5925-00-202-0938
NSN 5930-00-193-7349
NSN 2925-00-363-9878
NSN 5985-01-171-7598
NSN 6135-01-593-5295
NSN 5920-01-268-7258
NSN 5930-00-741-3825
NSN 5915-01-467-2578