Pardew was involved in the controversial incident in the second half of Newcastle’s 4-1 win at the KC Stadium.
After being knocked into by Hull’s David Meyler, Pardew came onto the pitch and thrust his head at the Tigers star.
A mini-melee ensued as the two men had to be pulled apart. Referee Kevin Friend issued Meyler with a yellow card and sent Pardew to the stands.
However, the Newcastle manager could well face further punishment for the incident.
"I tried to push him away with my head and I shouldn't have done that," said Pardew. "My team were terrific and it's only myself who had a poor performance."
It is not the first time Pardew has found himself in trouble for his behaviour on the touchline.
In September 2012 he was banned for two games and fined £20,000 after shoving assistant referee Peer Kirkup during a win over Tottenham.
Pardew was also caught on camera shouting obscenities at Manchester City boss Manuel Pellegrini earlier this season, and had a famous flare-up with Arsene Wenger in November 2006.
Pardew added in a separate interview: : "I think I'm going to sit down now because that's two or three incidents I've been involved in. I think I'm going to sit now.
"I didn't meant to do anything aggressive but I moved my head forward and that's enough.
"It's a shame because it took the gloss off a fantastic performance from us. That's really upsetting."
- Sports & Recreation
- David Meyler