The fine is only $2,000 less than Venable makes per week as an undrafted rookie free agent.
Venable says he hasn't seen the replay yet, but found a photo showing the hit was legal. Venable drew a 15-yard unnecessary roughness penalty on the play in the Sept. 1 preseason finale.
"There's a picture that I saw that definitely looked like I didn't hit him with my head, kind of maybe like shoulder to shoulder," he said. "But who knows? Maybe they thought he was a defenseless player; no one really explained it at the time."
The play occurred early in the fourth quarter. Williams went up in the air and was hit by Venable as the ball arrived.
If the fine holds up, Venable could be allowed to pay it back over a period of time instead of all at once.
The two were ejected after shoving at each other in the second half of the Jets' 17-3 win on Aug. 29.
After the incident, Wilkerson, the Jets' No. 1 draft pick out of Temple, said Jacobs "threw a blow" at him and he retaliated. "Was it a smart move? No," Wilkerson said. "Do I regret it? No. It's football and I am not going to let somebody try to take advantage of me."
Jacobs has previously been fined $20,000 by the league for yelling at Eagles fans and $10,000 for throwing his helmet in the stands during a game, both last season.
Information from The Associated Press was used in this report.