SEAL, MECHANICAL: TYPE SINGLE CARTRIDGE, SHAFT DIAMETER 85 MM, BODY MATERIAL SS 316L, APPLICATION CAUSTIC SODA SOLUTION RECIRCULATION PUMP, SIZE 4 IN, FFT: SEAL TYPE QBQW; MAT CODE YA5Z; API CODE BSTXN; API PLAN 11/62, MNFR: FLOWSERVE MNFR PART NO: UNK, MNFR DRG D0115236 REV: P1, EQUIP MODEL NO: 14 HNI 223 A, EQUIP SERIAL NO: D54960, D54961, D54962, TEST CERTIFICATE COMMENTS: MATERIAL TEST CERTIFICATE REQUIRED WITH DELIVERY