R-448 obsolete replaced by R 450, INSTALLED AT CHQ-I BU R 450 2P LSES315SN LS 315 SP-T 436214JG001 2P PLSES315MGU PLS 315 VL G2 B3 LS 315 SP-T 136519 JG 001 LS 315 SP-T 436257 KJ 001 PLS 315 VL G2 B3 909667500 WC 02 PLS-315VL G2 B3 909667500WC02 PLS315LD-T 268976 MF026 spare parts for 268976 MF026 - OEM 4P FLSB 315M LS90LT_GD013292TF LS315MP-T