Avery Moore added 18 points and Chris Watson 15 for the Rattlers (7-17, 5-5 Mid-Eastern Athletic Conference), who led 55-35 with 15:19 remaining.
The Aggies (10-15, 5-5) then used an 18-3 run to get within five, at 58-53 with 10:54 left. After FAMU pushed the lead back to 10, North Carolina A&T cut the deficit to three, at 63-60, on a tip-in by Waylan Siverand with 7:42 left. Stevens scored five straight points, and Watson made a three-point play to end the threat.
DaMetrius Upchurch and Nic Simpson scored 14 apiece to lead the Aggies, who have lost three straight after a five-game winning streak that began with an 85-82 overtime win over the Rattlers on Jan. 9.