SMC Push-Fit Adapter Fitting: 4 mm OD x 1/8 in Pipe Size, Push-to-Connect x BSPT
The SMC Push-Fit Adapter Fitting (MPN KQ2H04-01AS) is a brass push-to-connect x BSPT fitting for 4 mm OD tubing with a 1/8" pipe thread. It provides a secure, leak-free connection in pneumatic systems. 3G Electric…
SKU 3G-OTH-489318
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Product Description
The SMC Push-Fit Adapter Fitting (MPN KQ2H04-01AS) is a brass push-to-connect x BSPT fitting for 4 mm OD tubing with a 1/8" pipe thread. It provides a secure, leak-free connection in pneumatic systems. 3G Electric sources this and thousands of other industrial components across 14 departments, with specialist expertise in combustion, pumps, and controls to ensure you get the right part.
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 SMC KQ2H04-01AS push-fit adapter fitting used for?
The SMC KQ2H04-01AS is a brass push-to-connect x BSPT adapter fitting used to connect 4 mm OD tubing to a 1/8" BSPT threaded port in pneumatic systems. It provides a secure, leak-free connection for compressed air and vacuum applications in industrial automation and machinery.
What are the specifications of the SMC KQ2H04-01AS fitting?
The SMC KQ2H04-01AS is a brass push-to-connect x BSPT adapter fitting. It accepts 4 mm OD tubing and has a 1/8" BSPT male thread. The manufacturer part number is KQ2H04-01AS. It is designed for pneumatic systems requiring a reliable, leak-free connection.
Where to buy the SMC KQ2H04-01AS fitting worldwide?
3G Electric supplies the SMC KQ2H04-01AS push-fit adapter fitting to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. As a global industrial solutions provider, we source genuine components across 14 departments, including pneumatics, to ensure you get the right part.
How to install the SMC KQ2H04-01AS push-to-connect fitting?
To install the SMC KQ2H04-01AS, cut the 4 mm OD tubing square and deburr the end. Push the tubing fully into the fitting until it stops. For the threaded end, apply PTFE tape to the 1/8" BSPT threads and tighten into the port. Ensure the tubing is fully seated for a leak-free connection.
Used in
Common applications for SMCSMC Products
3G Electric supplies SMC polybutylene & brass tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









