Airtac PC Threaded Straight Connector PC401
The AirTAC Airtac PC Threaded Straight Connector PC401 is a genuine male connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale connector
- SeriesPC
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PC Threaded Straight Connector PC401
The PC401 is an AirTAC PC series male connector, the straight one-touch fitting that joins Dia 4 mm soft tubing to a 1/8in PT male thread. Push the tube home and the stainless spring gasket plus the POM chuck clamp it against the brass body; press the release ring and the tube slides straight back out. No spanner touches the tube side, so re-routing a 4 mm pilot line takes seconds.
This is the resin/brass PC profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg, proof pressure 1.5 MPa, and a temperature window of -20 to +70 C. The 1/8in thread arrives from the factory with sealant already applied, and the standard finish is grey; on PC parts the -D suffix changes only the release button colour, not the body.
Airtac PC Threaded Straight Connector PC401 Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC401 |
|---|---|
| Type | Male connector |
| Series | PC |
| Connection | Push-in one-touch |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PC Threaded Straight Connector PC401
| PC | Male connector. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PC Threaded Straight Connector PC401 Is Used
Vacuum ejector feed on a PCB pick-and-place head
The 4 mm bore keeps lines short and responsive on a compact ejector, and the PC401 holds the -750 mmHg (10 Torr) vacuum side of the circuit as comfortably as the pressure side.
Pilot air to a solenoid valve manifold on a bottling line
Where a 1/8in pilot port on the manifold sits tight against its neighbours, the short straight body of the PC401 clears adjacent fittings without a hex stack-up.
Micro-gripper supply on a snack-packaging machine
Dia 4 polyurethane tube flexes with the moving gripper head, and the one-touch release lets maintenance swap a worn gripper line without disturbing the rest of the circuit.
Is the Airtac PC Threaded Straight Connector PC401 the Right Part?
Dia 4 is the smallest tube in the standard PC range. The next step up is Dia 6 (PC601), which roughly doubles the bore area and suits short runs feeding small cylinders; below Dia 4 you leave the standard series and enter the PC mini line, which carries 3.2 mm tube on M3 or M5 threads. On the thread side, 1/8in sits between M5 (PC4M5, also available in Dia 4) and 1/4in (PC402), so match whichever the port on your valve or manifold is actually cut for. The tube size must match exactly either way: a Dia 4 chuck will not grip 5/32in or 4.5 mm tube, no matter how close it looks. If the port lives behind a panel, a PM bulkhead connector with an M12x1 locknut is the shape that passes through the wall instead.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PC Threaded Straight Connector PC401 FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C. It connects Dia 4 mm soft nylon or polyurethane tube to a 1/8in PT male thread, with a POM release button and chuck, aluminium-alloy guide, stainless spring gasket and NBR O-ring on a brass body.
No. Every threaded part in this one-touch catalogue arrives with sealant pre-applied to the PT thread, so the PC401 screws straight into the port; only the M5 sizes in the range use a sealing gasket instead. On the tube side there is nothing to prepare beyond a clean square cut, and 4 mm tube must be used as the chuck is not adjustable.
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