S81-600 - Coupling One Piece 6" - 1/2"x5/16" - Westwood Deep Sockets:

Deep Sockets:

Henry 5240-200 Relief Valve

Alternate Part Number: CS13006

Allowable Operating Temperature: -20°F to +300°F (-29°C to 149°C)

The Williams H-51B

S81-600 - Coupling One Piece 6" - 1/2"x5/16" - Westwood Deep Sockets:Reliable One Piece Motor Coupling for Beckett Burners The Westwood S81 600 One Piece Coupling delivers dependable power transmission from motor to pump in your oil burner system. Engineered specifically for 6" shaft applications with 1 2" x 5 16" dimensions, this coupling ensures smooth, vibration free operation for years of reliable heating performance. Why Choose This Coupling? One Piece Design: Eliminates alignment issues and reduces installation