Not exactly,...
The main purpose of the Academy is to produce line officers,,, that being said there have been if I am not mistaken a few USNA Grads that became chaplains (and other non traditional careers) that got to be a chaplain through a lateral transfer and after they had been through post graduate schools of divinity ( I think that Doctor of Divinity is the req, for full chaplain,) that are accredited. My own pastor, was an USNA graduate, however I do not think that he ever held the position of Naval Chaplain, though I may be wrong, I think he came into the Ministry after his Naval Career.