Unitized Rotary Replacement Pump Shaft Seal For Shaft Diameter 5/8 in Gasket Material Rubber Compatible with Media Type Water Replaces Grainger Seal 59410 5P409 Seal Type Designation 16 Shaft Seal Type Mechanical Shaft Seal Shut Off Pressure (Maximum) 150 psi Spring Material Stainless Steel Spring Type Single Spring Standards ISO 9001 TS16949 Maximum Temperature 205 Degrees F Minimum Temperature -40 Degrees F Working Length 0.81 in