A combustor for a gas turbine engine, comprising: a support shell ; a forward combustor liner segment ; an aft combustor liner segment ; and a combustor liner segment seal member , comprising: a center section having a base surface , a gas path surface , a forward side surface , and an aft side surface ; a forward flange extending outwardly from the forward side surface , the forward flange having a width , a height , a shell side surface , and a liner side surface ; and an aft flange extending outwardly from the aft side surface , the aft flange having a width , a height , a shell side surface , and a liner side surface , wherein the forward combustor liner segment is disposed on the liner side surface of the forward flange , and the aft combustor liner segment is disposed on the liner side surface of the aft flange ; wherein the center section has a height that is greater than the height of the forward flange and the height of the aft flange , wherein the forward flange is disposed between the shell and a seal shoulder of the forward combustor liner segment , the aft flange is disposed between the support shell and a seal shoulder of the aft combustor liner segment , and the center section is disposed between respective edge surfaces of the forward combustor liner segment and the aft combustor liner segment . a support shell ; a forward combustor liner segment ; an aft combustor liner segment ; and a combustor liner segment seal member , comprising: a center section having a base surface , a gas path surface , a forward side surface , and an aft side surface ; a forward flange extending outwardly from the forward side surface , the forward flange having a width , a height , a shell side surface , and a liner side surface ; and an aft flange extending outwardly from the aft side surface , the aft flange having a width , a height , a shell side surface , and a liner side surface , wherein the forward combustor liner segment is disposed on the liner side surface of the forward flange , and the aft combustor liner segment is disposed on the liner side surface of the aft flange ; a center section having a base surface , a gas path surface , a forward side surface , and an aft side surface ; a forward flange extending outwardly from the forward side surface , the forward flange having a width , a height , a shell side surface , and a liner side surface ; and an aft flange extending outwardly from the aft side surface , the aft flange having a width , a height , a shell side surface , and a liner side surface , wherein the forward combustor liner segment is disposed on the liner side surface of the forward flange , and the aft combustor liner segment is disposed on the liner side surface of the aft flange ; wherein the center section has a height that is greater than the height of the forward flange and the height of the aft flange , wherein the forward flange is disposed between the shell and a seal shoulder of the forward combustor liner segment , the aft flange is disposed between the support shell and a seal shoulder of the aft combustor liner segment , and the center section is disposed between respective edge surfaces of the forward combustor liner segment and the aft combustor liner segment . <EOS>