Crew members from both teams scuffled after late race contact between the two drivers in Saturday night's Nationwide Series event. Keselowski ran into the back of Hamlin under caution, and Hamlin retaliated by hitting him back.
The drivers finished second and third in the race, and their crews had to be separated in the impound area.
Eury Sr. was fined $1,000 and placed on probation until June 25.
Michael Sandlin, a team member for JR Motorsports, was suspended one race, fined $1,500 and placed on probation until Oct. 15. NASCAR said Sandlin failed to follow a directive from a NASCAR official and had inappropriate contact with a NASCAR official during the post-race altercation.
Jordan Allen, another JR Motorsports crew member, was fined $1,500 and placed on probation until Oct. 15 for failing to follow a directive from a NASCAR official and inappropriate contact with a NASCAR official.
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