Unitized Rotary Replacement Pump Shaft Seal Seal Type 16 Shaft Size (In.) 3/4 in Nominal Working Length (In.) 0.718 in Seat Bore 1.375 in Seat Thickness 0.406 in Material Content Code BMFJF Seal Material - Standard Industry Seal Number 201 Max Temp (F) 225 Degrees F Min Temp (F) -40 Degrees F Replacement For 5P411 5P412