This Bell & Gossett Pump Coupler is a spring type clockwise rotation coupler with a ½" x ½" shaft that fits the following circulating pump models: 60 series pump model 1 x 1 x 5-¼, Series 75-150, 1", 1-1/4", 1-1/2", 2" HV, 4RD13, 4RD14, 5YN64 to 72. The coupler is the most common part that needs to be replaced on a pump. It is constructed of cast iron. This is the most common size coupler. This coupler is Bell & Gossett model 118473.
EC Part Number: #57808
Manufacturer Number: 118473
Manufacturer: B&G