Kyle Washington led North Carolina State (17-12, 8-8) with 14 points. Ralston Turner had 13 and Trevor Lacey 12 as the Wolfpack had their three-game winning streak snapped.
The Eagles shot 65.2 percent to open a 43-26 lead at halftime. They didn't let up in the second half, twice opening 23-point advantages in the initial seven minutes.
North Carolina State sliced it to 66-54 with 3 ½ minutes to play, but the Eagles made enough plays to hold on.
During many stretches when N.C. State looked prepared to make a run, Hanlan calmly slowed down the offense and either drove, set-up teammates or hit a jumper.
Coming off an impressive 12-point win at North Carolina on Tuesday, the Wolfpack were hit hard by BC from the start. The Eagles nailed three of their initial four 3-point attempts for an 11-2 lead three minutes into the game.
After N.C. State seemed to settle down and played tougher defensively, the Eagles responded by getting out on the fastbreak in a 17-10 run, pulling to their first double-digit lead, 32-21, on Hanlan's two free throws.
BC closed the half by scoring 11 of the final 13 points, getting a 3-point play by Brown just before the buzzer.
The second didn't start any better for the Wolfpack when Lacey airballed their first shot and two teammates didn't touch rim on shots in the lane.
The Eagles scored the first six points, extending its advantage to 23 points on Heckmann's drive. They also made it 56-33 on Hanlan's long 3 from just in front of their bench with 12:58 to play.
North Carolina State: The Wolfpack held North Carolina to a nearly three-decade low 46 points in the Smith Center and 34.5 percent shooting in their last game. ... N.C. State had won the last six meetings against BC.
Boston College: Hanlan was coming off a 39-point effort in a loss at Pittsburgh on Tuesday and entered the game averaging 28.0 points a game in February. ... With spring break starting on Saturday, there were very few students, no cheerleaders and no band.
North Carolina State: At Clemson on Tuesday.
Boston College: At Virginia Tech on Monday.