Airtac PC Threaded Straight Connector PC603D
The AirTAC Airtac PC Threaded Straight Connector PC603D 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 PC603D
The PC603D is an AirTAC PC series one-touch male connector, the standard straight fitting for joining a Dia 6 mm soft nylon or polyurethane tube to a 3/8" PT male thread. Push the tube in and the stainless spring gasket backed chuck grips it for a pressure-tight seal; press the release button and the tube slides free for rework or re-routing.
This SKU carries the D suffix, which on the PC family changes only the release button to black - the brass body and grey guide stay exactly as the standard PC603, so it is a visual match for dark-coloured valves and manifolds rather than a different fitting. It runs on the resin one-touch profile: 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C. The 3/8" thread arrives factory-fitted with thread sealant, so no additional tape or compound is needed at assembly.
Airtac PC Threaded Straight Connector PC603D Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC603D |
|---|---|
| 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 PC603D
| 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 PC603D Is Used
FRL step-down on a packaging line
Take the 3/8" outlet of a filter-regulator-lubricator set straight down to 6 mm tubing feeding heat-seal jaws or label heads, with no extra reducing nipple in the circuit.
Valve island drops on a palletiser
Palletiser manifolds are commonly plumbed in 3/8"; the PC603D turns each spare port into an instant push-in take-off for a 6 mm vacuum or blow-off line.
Lab pick-and-place bench builds
On an instrument or small Cartesian gantry, the black release button sits neatly against dark anodised valve bodies and keeps 6 mm actuator lines tool-free to service.
Is the Airtac PC Threaded Straight Connector PC603D the Right Part?
On a 3/8" PT thread the PC ladder starts at Dia 6 - the PC603D is the smallest bore AirTAC offers on that port, with no Dia 4 option below it. Stepping up one size takes you to the PC803 (Dia 8 tube), which doubles the flow path area for longer or hungrier lines; the 3/8" port itself is shared across Dia 6, 8, 10 and 12. If your port is smaller, the same Dia 6 tube drops to the PC602 on 1/4" or the PC601 on 1/8".
Match the thread to the port, not the tube: a 6 mm line on a big 3/8" outlet is a normal, deliberate step-down from an FRL or valve island. And keep the tube OD exact - a Dia 6 chuck will not seal on 1/4" (6.35 mm) imperial tube, however close it looks.
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 PC603D FAQ
It joins a Dia 6 mm tube to a 3/8" PT male thread. Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum capability -750 mmHg (10 Torr), operating temperature -20 to +70 C, for soft nylon or polyurethane tubing. Body is brass with a POM release button and chuck, aluminium alloy guide, stainless spring gasket and NBR O-ring; the D suffix makes the release button black.
No. AirTAC ships this fitting with sealant already applied to the 3/8" PT male thread, so it can be wound straight into the port. Only the small M5 versions of this series use a sealing gasket instead of applied sealant.
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