'a' for a2-a5 engine to a2-a5 gear case, counter-rotating
No other part numbers with same form, fit, and function found.
NSN 5996-01-145-2295
NSN 5920-00-879-3617
NSN 5930-00-370-1330
NSN 6650-01-193-3666
NSN 5999-01-599-6973
NSN 5965-01-006-7915
NSN 5915-00-929-5248
NSN 5905-01-268-6310
NSN 5855-01-440-1768
NSN 6620-01-488-9547
NSN 5915-01-229-6370
NSN 5905-01-028-7868