Career
Hart played college football at Morris Brown College and was drafted in the tenth round of the 1968 NFL Draft by the 49ers. He was a one-time Pro Bowler in 1976 when he recorded 16 sacks including 6 in a single game versus the Los Angeles Rams in the first Rams49ers game of the season. He recorded 16 sacks in 1972 when he was honorable mention All-NFC. In 1972 and 1976 Hart earned the Len Eshmont Award, the 49ers most prestigious annual honor.
He was traded to the Chicago Bears before the 1978 season.
Hart returned to the NFL in 1981, as an Assistant Defensive Lincolnshire Coach for the 49ers under the leadership of Coach Bill Walsh.