Airtac PC Threaded Straight Connector PC803D-S
SUS304 stainless variant (-S)The AirTAC Airtac PC Threaded Straight Connector PC803D-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 PC803D-S
The PC803D-S is an AirTAC PC series one-touch male connector in the stainless SUS304 variant. It joins Dia 8 mm soft nylon or polyurethane tube to a 3/8in PT male thread. Push the tube home into the chuck and the grip locks it in a sealed position; press the release ring and the tube frees off again, no tools needed.
Because this is a -S straight connector, the body itself is SUS304 stainless steel and the whole assembly is copper-free. The release button and chuck stay POM, the guide stays aluminium alloy, the spring gasket is stainless and the O-ring is NBR. Ratings are unchanged from the resin line: 0-1.0 MPa working, -750 mmHg (10 Torr) vacuum, 1.5 MPa proof, -20 to +70 C. The D suffix gives a black release button; on the PC series it changes only the button, and on this variant the body is stainless anyway.
Airtac PC Threaded Straight Connector PC803D-S Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC803D-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 PC803D-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 PC803D-S Is Used
Plating and electrochemistry shops
Copper-free air drops above rectifier tanks and rinse stations, where dissolved copper leached from brass fittings would contaminate the bath chemistry and reject work.
Food packaging washdown zones
Stainless body on the cylinder ports of tray-sealing and form-fill-seal machines hosed down each shift, with the 3/8in thread matching the cylinder head port directly.
Marine and dockside air lines
Dia 8 branch feeds to deck equipment and air-tool points on fishing vessels and quayside rigs, where salt spray pits plain brass fittings within a season.
Is the Airtac PC Threaded Straight Connector PC803D-S the Right Part?
On the 3/8in rung of the PC ladder, Dia 8 sits between Dia 6 and Dia 10. Stepping down to Dia 6 suits light pick-and-place drops and short runs to small actuators; stepping up to Dia 10 or Dia 12 gives a larger bore for main feeds where cylinder fill speed matters. The 3/8in PT thread arrives with sealant already applied, so match it to the port first: a 3/8in port on a cylinder head or manifold block takes this directly, while a 1/4in port calls for the PC802 instead. Tube OD must match exactly - a Dia 8 chuck will not grip 5/16in or 1/4in imperial hose.
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 PC803D-S FAQ
It is a Dia 8 mm tube to 3/8in PT male thread one-touch connector. 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. Body SUS304 stainless and copper-free, O-ring NBR, release button and chuck POM, spring gasket stainless steel.
The chuck grips exactly Dia 8 mm soft nylon or polyurethane tube - 5/16in or 1/4in imperial hose will not seal or hold. If your line is Dia 6 or Dia 10 on the same 3/8in thread, order the Dia 6 or Dia 10 version of this connector instead; all three sizes exist on the PC 3/8in rung.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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