'a' for a2-a5 engine to a2-a5 gear case, standard rotation
NSN 5935-01-270-6148
NSN 6135-00-432-8779
NSN 5895-00-757-3027
NSN 6105-01-552-8968
NSN 5990-01-631-5537
NSN 2925-01-213-6622
NSN 5895-01-289-5059
NSN 5920-00-598-0469
NSN 5855-01-191-3404
NSN 5990-01-431-6749
NSN 6135-01-069-2482
NSN 7035-00-406-0568