Old Part Numbers: ST067300AV, HF004500AVThe Ferrule is placed inside a compression nut to help stop air leaks. Genuine replacement part - OEM.

Oil sight glass for your air compressor pump. Replace this if the glass is clouded or leaking.

Old Part Numbers: CW210000AV, EV1WSICondor unloader valve for MDR21130 and other popular pressure switches.  Replace this valve if air constantly leaks from the valve while the unit is running, or if you don't hear a burst of air from the valve...

Old Part Numbers: ST016500AV

Plastite screw, 5/8" long. Screw for the plastic shroud, belt guard, etc. Note: Also used on models WL650103, WL651900, WL650703, WL651004, WL651000AJ.Specifications5/8" long