Cap for Oil Drain Extension

Piston Pin for air compressors.

Old Part Numbers: ST022300AV, STD-2231/8" male NPT pipe plug. Used to plug accessory threads in the air compressor manifold, regulator, pressure switch (etc.).

Old Part Numbers: PS3030RVUnloader Valve used on many Furnas / Hubbell brand air compressor pressure switches includes the unloader valve with compression nut and sleeve, and screw. Replace this part if it leaks while the unit is running. If this part...

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