After less than three hours of deliberations, the jury overseeing the bribery trial of ex-NYC union boss Norman Seabrook said Tuesday that it has reached a partial verdict.

The nine women and three men of the jury told Manhattan federal Judge Alvin Hellerstein that they were unanimous on one of Seabrook’s bribery counts but “deadlocked on the other charge with no possibility of a resolution.”

The judge, who got the note roughly two and a half hours after the jury began deliberating, told them he would not accept their “partial verdict.”

“You’ve been out only three hours — a little less. You haven’t deliberated enough,” he said.

Seabrook, the once powerful head of the Correction Officers’ Benevolent Association union representing Rikers’ guards, stands accused of steering a whopping $20 million of COBA money into troubled hedge fund Platinum Partners in exchange for cash.

His first trial in 2017 was tossed due to a deadlocked jury.