Nicholas Mina — so hooked on prescription pills that he stole guns from his East Village precinct stationhouse and sold them to his dealer — was sentenced to 15-1/2 years in prison Wednesday, prosecutors said.

The dirty cop pinched at least four NYPD-issued guns from colleagues’ lockers at the Ninth Precinct to pay off debts to his drug dealer, Ivan Chavez.

Mina, 32, also sold a fifth Glock that he owned but had not registered with the department, prosecutors said.

Mina, Chavez and three accomplices were busted in July.

Chavez, who had been a police informant, admitted his role in October and got 20 years in the slammer.

A Long Island native with four years on the force, Mina took a plea deal in October.