Here are the players who have previously worn the number #80 for the Jets:
1993-94 TE James Thornton
1990-92 TE Mark Boyer
1989 TE Greg Werner
1988 TE K.D. Dunn
1980-85 WR Lam Jones
1979 WR Roger Farmer
1978 WR Kevin Bell
1976 WR Howard Satterwhite
1967-73 DT John Eliott
1966 DE Bob Werl
1964 WR Jim Evans
1962 WR Perry Richards (New York Titans)
1960-61 E Dave Ross (New York Titans)
Bill Mathis
According to pro-football-reference.com, there was no player who wore number 17 on the active roster of the 1970 New York Jets.
QB Joe Namath in 1976.
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In 1969, no player wore #57 for the New York Jets.
In 1999, Steve Atwater wore #27 for the New York Jets.
Currently kicker Jay Feely.
In 1980, running back Clark Gaines wore #21 for the New York Jets.
No player wore #33.
For the 2001-02 season, punter Daniel Pope wore #4 for the New York Jets.
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Punter Matt Turk