
The AirTAC Airtac PC Threaded Straight Connector PC1003D-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 PC1003D-S is AirTAC's PC series one-touch male connector in the SUS304 stainless-body version, joining Dia 10 mm soft nylon or polyurethane tubing to a 3/8" PT male port. Push the tube home and the stainless spring gasket chuck grips it for a pressure-tight joint; press the POM release ring and the tube frees again without tools. The D suffix marks the black release button on this otherwise grey-bodied fitting.
Because this is a -S part on the PC straight-connector family, the body itself is Stainless steel 304 and AirTAC states that all parts of the assembly are copper-free - not just the wetted threads. Keep the standard resin-line ratings in mind: 0-1.0 MPa working pressure, 1.5 MPa proof pressure, -20 to +70 C, and -750 mmHg vacuum. Stainless changes the corrosion story, never the pressure story.
| Model | Airtac PC Threaded Straight Connector PC1003D-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. |
Copper-free SUS304 bodies stop copper ions entering rinse-water circuits on electroplating and PCB etch lines, where trace copper contaminates chemical baths. The black D button stays legible in misty environments.
Feeds a Dia 10 mm line to a poppet or gate actuator on a food-plant washdown conveyor, where a brass fitting would pit under daily caustic spray. Tubing temperature, not the fitting, is the 70 C limit to watch.
A 3/8" PT branch on a workboat's air manifold serving deck equipment, where salt-laden air rapidly whites-out plated brass bodies. Stainless 304 shrugs off the same exposure.
On the PC 3/8" row your neighbours are Dia 8 (PC803D-S) below and Dia 12 (PC1203D-S) above. Stepping down to 8 mm buys a slimmer grip nut for tighter tube routing; stepping up to 12 mm suits short, high-demand cylinder feeds where a longer line would otherwise throttle. Whatever you pick, the tube OD must match the fitting exactly - a Dia 10 chuck will not seal on 3/8" (9.5 mm) imperial tube, which is a different catalogue entirely.
Match the 3/8" thread to the actual port: it mates with 3/8" PT (BSPT tapered) ports and arrives with sealant pre-applied to the thread. If your panel needs a through-wall pass instead of a ported connector, the PMF bulkhead female connector is the shape to look at; if you need to turn 90 degrees at the port, a PL or PH elbow beats a straining hose.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, vacuum to -750 mmHg (10 Torr), temperature -20 to +70 C. It connects Dia 10 mm soft nylon or polyurethane tube to a 3/8" PT male thread, and the body is SUS304 with a copper-free parts list. These ratings are identical to the standard PC1003D - the stainless version is never re-rated.
No. The one-touch chuck and O-ring are sized to grip exactly Dia 10 mm OD tubing, and metric OD is not the same as 3/8" nominal (9.5 mm). For 13 mm or other off-ladder sizes you would need a different catalogue; within this series the valid neighbours on a 3/8" thread are Dia 8 and Dia 12 mm.
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