Leonard Williams, a defensive end, wears number 62 for the Jets.
Why can a defensive lineman wear a number in the 60s? My understanding was that 62 was for an offensive guard.
According to this chart, the number 62 is designated for Offensive Line and Defensive Line. As Leonard Williams is a Defensive Lineman, he is more than welcome to wear #62.
1-9 Quarterbacks and Kickers
10-19 Quarterbacks, Receivers, Tight Ends, and Kickers
20-49 Running Backs and Defensive Backs
50-59 Centers and Linebackers
60-79 Defensive Linemen and Offensive Linemen
80-89 Receivers and Tight Ends (or 40-49 if those ranges are taken)
90-99 Defensive Linemen and Linebackers
His college number of 94 is currently being worn by Damon Harrison, also a Defensive Lineman.