Airtac PC Threaded Straight Connector PC1203D-S
SUS304 stainless variant (-S)The AirTAC Airtac PC Threaded Straight Connector PC1203D-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.
- 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 PC1203D-S
The PC1203D-S is an AirTAC PC series male connector, and because this SKU carries the -S suffix the connector body itself is machined from SUS304 stainless steel rather than plated brass. On PC straight connectors the stainless goes into the body, not just the stud, and AirTAC states the construction is copper-free - a real distinction when even trace copper is unwanted. Push Dia 12mm soft nylon or polyurethane tubing into the chuck and it grips; press the release ring and it frees.
The spec profile is the standard resin-line one: 0-1.0 MPa (0-10 kgf/cm2) working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure, -20 to +70 C. The D suffix sets a black release button - on the PC series it changes only the button, nothing else. The 3/8in PT male stud arrives with thread sealant already applied, so it seals straight into the port.
Airtac PC Threaded Straight Connector PC1203D-S Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC1203D-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.
Model Code: Airtac PC Threaded Straight Connector PC1203D-S
| 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. |
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 PC1203D-S Is Used
Electroplating rinse-line actuators
Copper-free SUS304 keeps the wet plating cell pneumatics free of copper ions that catalyse bath reactions; the Dia 12 bore feeds rinse-tank lift cylinders with a 3/8in manifold stud.
Bottling-line wash-down cabinet
Inside a beverage filler guard, daily hose-down corrodes plated brass fast. The stainless body laughs it off, and the PT stud drops into the existing 3/8in valve manifold.
Dock-side winch control panel
Salt fog at a marine loading berth eats standard fittings within a season. A 3/8in PT stud and Dia 12 lines suit the larger deck winch cylinders without a thread adapter.
Is the Airtac PC Threaded Straight Connector PC1203D-S the Right Part?
On the PC 3/8-inch thread ladder (Dia 6, 8, 10, 12) this is the top rung - Dia 12 is the largest tube the PC series accepts anywhere in the range, and no Dia 16 exists in this catalogue. The step down is PC1003S at Dia 10: a slimmer connector that suits lighter lines, while the 12mm bore here keeps velocity down on higher-demand cylinder feeds.
Match the 3/8in PT stud to the port before anything else - a Dia 12 fitting will not grip 1/2-inch hose, and forcing the wrong OD in is the usual cause of blow-off. If you need the same tube on a swivelling or angled port, the PEB or PED branch shapes share this thread ladder.
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 PC1203D-S 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 joins Dia 12mm soft nylon or polyurethane tube to a 3/8in PT male thread. The connector body is SUS304 stainless steel and the build is copper-free; chuck and button stay POM with an NBR seal.
No. AirTAC's dimension tables for the stainless PC connector match the standard part, and every pressure, vacuum and temperature figure is identical. Only the body material moves to SUS304, plus the copper-free construction - there is no re-rating, and on PC/POC connectors the stainless is the body itself, whereas on elbows and tees only the stud is stainless.
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