
The AirTAC Airtac PC Threaded Straight Connector PC1003-S 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.
The PC1003-S is AirTAC's PC male connector in the SUS304 stainless option: a straight one-touch fitting that joins Dia 10 mm soft nylon or polyurethane tubing to a 3/8 in PT male thread. Push the tube into the chuck and the stainless spring gasket grips it for a pressure-tight joint; press the POM release ring and the tube slides straight back out. No tools, no ferrules, no re-tightening.
On the PC and POC straight connectors, the -S suffix replaces the body itself with stainless steel 304, and AirTAC states the whole part is copper-free - not just the wetted thread. That matters on washdown lines, in plating shops and wherever copper ions can contaminate a process. Ratings are identical to the brass version: 0-1.0 MPa working, 1.5 MPa proof, -750 mmHg vacuum, -20 to +70 C. The thread arrives with sealant pre-applied.
| Model | Airtac PC Threaded Straight Connector PC1003-S |
|---|---|
| Type | Male connector |
| Series | PC |
| Connection | Push-in one-touch |
| Body material | Stainless steel 304 (-S variant) |
| 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. Stainless (-S): SUS304 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
| 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. |
| -S | Stainless-steel body. |
Running Dia 10 mm drops to pneumatic vibrators and gate actuators on a packaging line that is hosed down every shift - the SUS304 body shrugs off water and cleaning chemicals where a brass body would dull and pit.
Air supply to lift cylinders and rinse-nozzle manifolds above plating tanks, where copper-free construction prevents copper ions migrating into bath chemistry via the air path.
Dia 10 mm feeds to control valves on deck-mounted or dockside equipment, where salt-laden air quickly corrodes plated brass but leaves the 304 straight-connector body serviceable.
This sits mid-ladder on the PC 3/8 in row. Step down to PC803 for Dia 8 mm tube - a lighter drop for small grippers and signal-air actuators. Step up to PC1203 for Dia 12 mm tube, the largest bore on this thread, when the run feeds a cylinder that needs real volume at speed. If your port is smaller, PC1002 (1/4 in) takes the same Dia 10 tube on a 1/4 in stud.
Match the thread to the port, not to habit: 3/8 in PT is the natural fit for larger cylinder ports and manifold branches. And match the tube exactly - a Dia 10 chuck will not seal on 3/8 in (9.5 mm) or 12 mm tubing, however close it looks.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum to -750 mmHg (10 Torr), operating temperature -20 to +70 C. The fitting joins Dia 10 mm soft nylon or polyurethane tube to a 3/8 in PT male thread. Identical ratings to the standard PC1003 - stainless changes the material, not the numbers.
On the PC and POC straight connectors the body itself is stainless steel 304, and AirTAC confirms all parts are copper-free. The release button and chuck remain POM, the guide is aluminium alloy, and the O-ring is NBR. Note that other stainless families such as PL or PLL elbows keep a PBT body with only the stud in SUS304 - the PC1003-S is genuinely a solid stainless body.
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