4.5" Single Groove A Section 4L Sheave with 5/8" (0.625") Keyed Bore - AK46 Rolair (Note: 1/4" NPT measures about

(Note: 1/4" NPT measures about 1/2" in diameter

and keeping contaminates such as dirt away from all moving parts

This valve is equipped with an in-line check valve and attached to the side is a built-in piloted unloader valve set 95-125 PSI

Masterdrive single groove 4

push the knob down so the red is not visible

4.5" Single Groove A Section 4L Sheave with 5/8" (0.625") Keyed Bore - AK46 Rolair (Note: 1/4" NPT measures aboutCast Iron 4. 5" Single Groove V Style Section A Belt 4L 5 8" Shaft Pulley Masterdrive single groove 4. 5" pulley for A section 4L belts. This is a high quality cast iron pulley. This pulley is designed to fit a 5 8" keyed shaft and features dual set screws to ensure a completely secure fitting. Most pulleys that are similar to this only have one set screw, making them less reliable in many working conditions. This pulley is designed to be used with A