O-RING, BACK DISK; DRAWING NO: V-215A-207-B-117; POSITION NO: 36; MANUFACTURER PART NO: KRPB167; EQUIPMENT MANUFACTURER NAME: OBL PO MPE DOSATRICI; EQUIPMENT NAME: METERING PUMP; EQUIPMENT MODEL NO: LY10X9A36FA-M3252; EQUIPMENT SERIAL NO: 2004P3388; EQUIPMENT TAG N O: ME-3303A-P-01A, ME-6204-P-01A, ME-6204-P-01B