Defensive back Stan Smagala.
Wide Receiver Randy Reutershan wore the #40 for the Steelers in 1978. He was the only player to wear that number for the team during the 1970's.
There have been 4 players who wore number 8 for the Steelers. Tommy Maddox (01-05), Everett Fisher (40), Joseph Yurcic (40), Deluca (35).
Tommy MaddoxDeluca (35)Joseph Yurcic (40)Everett Fisher (40)Tommy Maddox (01-05)
Bubby Brister played QB for the Steelers between 1986-1992 and wore #6.Cosgrove (35)Chester Johnson (40)Jim Elliott (67)Bubby Brister (86-92Sean Suisham (2010)
Click on the 'Pittsburgh Steelers' link underneath this answer to see a list of players for the Steelers and what jersey number they wore. Next to the players name, in parenthesis, is the year or years that the player played for the Steelers. If the value within parenthesis is something like (40-44) or (48), that means the player played for the Steelers in the 1940s.
There have been 5 players on the Steelers to wear the number 6: Shaun Suisham (10-present), Bubby Brister (86-92), Jim Elliott (67), Chester Johnson (40), Cosgrove (35).
These players have worn number 6 for the Pittsburgh Steelers: * Bubby Brister (86-92) * Jim Elliott (67) * Chester Johnson (40) * Cosgrove (35)
Anthony Wright (99)Gary Anderson (82-94)Dave Trout (81)Merlyn Condit (40)Warren Heller (36)Zeher (35)
These 7 players have worn the number 4 for the Pittsburgh Steelers:Byron Leftwich (08,10)Tyler Packo (09)Josh Miller (96-03)Dan Stryzinski (90-91)Andy Tomasic (42)Frank Bykowski (40)Mel Pittman (35)
The Seattle Seahawks lost to the Pittsburgh Steelers in Superbowl 40.