Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SMC Push-Fit Cap: 4 mm OD Size, Push-to-Connect, Polybutylene Terephthalate - Polybutylene & Brass Tube Fittings
SMCPolybutylene & Brass Tube Fittings

SMC Push-Fit Cap: 4 mm OD Size, Push-to-Connect, Polybutylene Terephthalate

The SMC Push-Fit Cap (MPN KQ2C04-00A) is a push-to-connect fitting made of polybutylene terephthalate, designed for 4 mm OD tubing. With an overall length of 14 1/2 mm, this cap provides a simple, secure seal for…

SKU 3G-OTH-488847

Brand
SMC
Item
Push-Fit Cap: 4 mm OD Size, Push-to-Connect, Polybutylene Terephthalate
Category
Polybutylene & Brass Tube Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SMC
Manufacturer Part Number
KQ2C04-00A
Type
Push-to-Connect, Polybutylene Terephthalate
Overall Lg
14 1/2 mm
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SMC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SMC Push-Fit Cap (MPN KQ2C04-00A) is a push-to-connect fitting made of polybutylene terephthalate, designed for 4 mm OD tubing. With an overall length of 14 1/2 mm, this cap provides a simple, secure seal for terminating pneumatic lines in industrial systems.

Frequently Asked Questions

What is the SMC Push-Fit Cap KQ2C04-00A used for?

The SMC Push-Fit Cap KQ2C04-00A is used to terminate pneumatic tubing lines in industrial automation systems. It seals the end of 4 mm OD polyurethane or nylon tubing, preventing air leaks and contamination in compressed air circuits, assembly lines, and packaging machinery.

What are the specifications of the SMC KQ2C04-00A cap?

The SMC KQ2C04-00A is a push-to-connect cap made of polybutylene terephthalate. It fits 4 mm OD tubing and has an overall length of 14 1/2 mm. The push-fit design allows tool-free installation for a secure seal on pneumatic lines.

Where to buy SMC KQ2C04-00A push-fit caps worldwide?

3G Electric supplies the SMC KQ2C04-00A push-fit cap to customers worldwide. We handle full logistics, customs clearance, and delivery for international orders. Contact our team for a quote and lead time on this pneumatic fitting.

How to install the SMC push-fit cap on 4 mm tubing?

To install the SMC push-fit cap, cut the 4 mm OD tubing square and push it firmly into the cap until it clicks. Ensure the tube is fully seated for a leak-free seal. To release, press the collet evenly and pull the tube out. No tools are required.

Used in

Common applications for SMC
Automotive assembly — SMC ZP3 flat vacuum pads for handling small components in pick-and-place robots
Semiconductor manufacturing — SMC ZM series vacuum generators with needle valves for precise wafer handling
Food packaging — SMC AW-D series filter regulators for clean compressed air in pneumatic actuators
General industrial automation — SMC AS2211F speed control valves for regulating cylinder speeds in conveyor systems
Vacuum conveying — SMC ZH series box-type vacuum generators for material transport in packaging lines
Machine tool coolant systems — SMC ZF series in-line filters to protect vacuum ejectors from debris

SMC 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SMC

View all SMC parts
SMC Push-Fit Adapter Fitting: 1/8 in OD x 1/4 in OD Size, Push-to-Connect x Push-to-Connect, Brass (MPN KQ2R01-07A). Key specifications — Brand: SMC.
SMC
SMC Push-Fit Adapter Fitting: 1/8 in OD x 1/4 in OD Size, Push-to-Connect x Push-to-Connect, Brass (MPN KQ2R01-07A). Key specifications — Brand: SMC.
SMC Push-Fit Elbow Fitting: 1/8 in OD x 5/32 in OD Size, Push-to-Connect x Push-to-Connect, Brass (MPN KQ2L01-03A). Key specifications — Brand: SMC.
SMC
SMC Push-Fit Elbow Fitting: 1/8 in OD x 5/32 in OD Size, Push-to-Connect x Push-to-Connect, Brass (MPN KQ2L01-03A). Key specifications — Brand: SMC.
SMC Push-Fit Elbow Fitting: 6 mm OD x 1/4 in Pipe Size, Push-to-Connect x BSPT, Brass, White (MPN KQ2L06-02AS). Key specifications — Brand: SMC; Thread Size A: 1/4".
SMC
SMC Push-Fit Elbow Fitting: 6 mm OD x 1/4 in Pipe Size, Push-to-Connect x BSPT, Brass, White (MPN KQ2L06-02AS). Key specifications — Brand: SMC; Thread Size A: 1/4".
SMC Push-Fit Adapter Fitting: 5/32 in OD x 1/4 in Pipe Size, Push-to-Connect x FNPT, Brass, White (MPN KQ2F03-35A). Key specifications — Brand: SMC; Thread Size A: 1/4".
SMC
SMC Push-Fit Adapter Fitting: 5/32 in OD x 1/4 in Pipe Size, Push-to-Connect x FNPT, Brass, White (MPN KQ2F03-35A). Key specifications — Brand: SMC; Thread Size A: 1/4".
SMC Push-Fit Adapter Fitting: 12 mm OD x 3/8 in Pipe Size, Push-to-Connect x BSPT, Brass, White (MPN KQ2F12-03A). Key specifications — Brand: SMC; Thread Size A: 3/8".
SMC
SMC Push-Fit Adapter Fitting: 12 mm OD x 3/8 in Pipe Size, Push-to-Connect x BSPT, Brass, White (MPN KQ2F12-03A). Key specifications — Brand: SMC; Thread Size A: 3/8".
SMC Push-Fit Wye Fitting: 8 mm OD x 8 mm OD x 1/8 in Pipe x 8 mm Pipe Size, Tube x Tube x BSPT x NPT (MPN KQ2U08-01AS). Key specifications — Brand: SMC.
SMC
SMC Push-Fit Wye Fitting: 8 mm OD x 8 mm OD x 1/8 in Pipe x 8 mm Pipe Size, Tube x Tube x BSPT x NPT (MPN KQ2U08-01AS). Key specifications — Brand: SMC.
SMC Push-Fit Adapter Fitting: 4 mm OD x 6 mm Pipe Size, Push-to-Connect x Metric, Brass, Brass (MPN KQ2S04-M6A). Key specifications — Brand: SMC; Thread Size A: M6x1.0.
SMC
SMC Push-Fit Adapter Fitting: 4 mm OD x 6 mm Pipe Size, Push-to-Connect x Metric, Brass, Brass (MPN KQ2S04-M6A). Key specifications — Brand: SMC; Thread Size A: M6x1.0.
SMC Push-Fit Adapter Fitting: 3/8 in OD x 1/2 in Pipe Size, Push-to-Connect x BSPT, Brass, Brass (MPN KQ2H11-04AS). Key specifications — Brand: SMC; Thread Size A: 1/2".
SMC
SMC Push-Fit Adapter Fitting: 3/8 in OD x 1/2 in Pipe Size, Push-to-Connect x BSPT, Brass, Brass (MPN KQ2H11-04AS). Key specifications — Brand: SMC; Thread Size A: 1/2".