The season-long suspension of New Orleans Saints linebacker Jonathan Vilma pretty much is unprecedented in the NFL.

There have been plenty of one-year suspensions (and some longer) for substance-abuse violations. But Vilma’s suspension ranks as one of the longest in history.

With help from the Associated Press, by way of ESPN Stats & Information, here’s a list of the longest non-substance-abuse suspensions in NFL history:

• Art Schlichter, life, suspended one year for gambling in 1983, never reinstated
• Merle Hapes, eight years, suspended for conversing with known gambler in 1946, reinstated in 1954
• Frank Filchock, three years, suspended for conversing with known gambler in 1947, reinstated in 1950
• Michael Vick, two years, two games, suspended indefinitely in 2007 after pleading guilty to role in dogfighting
• Plaxico Burress, two years, suspended for duration of jail term in 2009 after pleading guilty to criminal possession of a weapon
• Donte’ Stallworth, one year, suspended for one year after pleading guilty to DUI manslaughter in 2009
• Paul Hornung, one year, suspended one year for gambling in 1963
• Alex Karras, one year, suspended one year for gambling in 1963
• Adam Jones, one year, suspended one year for violating Personal Conduct Policy in 2007

Those suspensions all involved off-field actions. Here is the list of the longest NFL suspensions for on-field incidents:

• 2006: Albert Haynesworth suspended five games after stomping on head of Cowboys center Andre Gurode. Gurode was not wearing a helmet at the time.
• 2011: Ndamukong Suh suspended two games after stomping on right arm of Packers lineman Evan Dietrich-Smith.
• 1986: Charles Martin suspended two games for body slamming Bears QB Jim McMahon to turf.