JOHNSON CONTROLS Oil Indicator: 1/8 in NPT, Brass, A-4000
The JOHNSON CONTROLS A-4000-120 Oil Indicator is a brass oil indicator with a 1/8 in NPT connection. It is part of the A-4000 series and is manufactured by JOHNSON CONTROLS.
SKU 3G-OTH-138735
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Product Description
The JOHNSON CONTROLS A-4000-120 Oil Indicator is a brass oil indicator with a 1/8 in NPT connection. It is part of the A-4000 series and is manufactured by JOHNSON CONTROLS.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the JOHNSON CONTROLS A-4000-120 oil indicator used for?
The JOHNSON CONTROLS A-4000-120 oil indicator provides a visual check of oil level in industrial lubrication systems, compressors, and hydraulic reservoirs. Its brass construction resists corrosion, and the 1/8 in NPT connection fits standard ports. It is commonly used in HVAC, refrigeration, and manufacturing equipment where reliable oil monitoring is required.
What are the specifications of the JOHNSON CONTROLS A-4000-120 oil indicator?
The JOHNSON CONTROLS A-4000-120 oil indicator has a 1/8 in NPT connection and is made of brass. It is part of the A-4000 series, with manufacturer part number A-4000-120. The brass body provides durability and corrosion resistance for oil-level sighting applications in industrial equipment.
Where to buy the JOHNSON CONTROLS A-4000-120 oil indicator worldwide?
3G Electric supplies the JOHNSON CONTROLS A-4000-120 oil indicator worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this brass oil indicator to any country.
How to install the JOHNSON CONTROLS A-4000-120 oil indicator?
Install the JOHNSON CONTROLS A-4000-120 oil indicator by threading the 1/8 in NPT connection into a compatible port. Use thread sealant on NPT threads to prevent leaks. Ensure the indicator is oriented vertically for accurate oil-level reading. Tighten to manufacturer torque specs. Always depressurize the system before installation.
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3G Electric supplies JOHNSON CONTROLS oil indicators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.






