Airtac PC Threaded Straight Connector PC4M5D-S
SUS304 stainless variant (-S)The AirTAC Airtac PC Threaded Straight Connector PC4M5D-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 PC4M5D-S
The PC4M5D-S is the SUS304 stainless version of AirTAC's PC male connector, built for the smallest tube in the range: Dia 4 mm soft nylon or polyurethane tubing pushed into an M5x0.8 male thread. One push seats the tube past the POM chuck, which grips it radially; pressing the release ring lets it come back out without tools.
On PC and POC straight connectors, the -S suffix makes the fitting BODY itself stainless steel 304, and AirTAC states every part in the build is copper-free - the release button and chuck stay POM, the guide aluminium alloy, the spring gasket stainless, the O-ring NBR. The D suffix turns the release button black. Ratings are unchanged from the standard line: 0-1.0 MPa working, 1.5 MPa proof, -20 to +70 C. The M5 port seals with a supplied gasket, not thread sealant, so no curing or paste migration near clean processes.
Airtac PC Threaded Straight Connector PC4M5D-S Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC4M5D-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 PC4M5D-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 PC4M5D-S Is Used
Electronics pick-and-place heads
Feeds Dia 4 tubing to the small cylinders and grippers on SMT pick-and-place heads, where M5 ports are standard and the copper-free body avoids metal contamination around sensitive board handling.
Laboratory and analytical pneumatic circuits
Connects 4 mm tube to M5-tapped valve manifolds and sample-handling blocks on lab analysers, where a gasket-sealed M5 thread keeps sealant paste out of the circuit and the SUS304 body resists cleaning agents.
Plating and chemical dosing skids
Suits air pilot lines on plating-line dosing and rinsing fixtures, where copper alloys can catalyse bath chemistry and the stainless body stands up better to acid splash and wash-down than brass.
Is the Airtac PC Threaded Straight Connector PC4M5D-S the Right Part?
Dia 4 is the bottom rung of the PC M5 ladder - there is no smaller tube option, so the only step from here is up to the PC6M5-S for Dia 6 tube, which gives roughly a 50% larger bore and lower pressure drop on the same M5 port. If your tubing is Dia 4 but the port is a standard 1/8in PT, order the PC401-S instead; M5 is only worth choosing where the mating component is already tapped M5.
Check your tube before ordering: Dia 4 mm is 4.0 mm OD, not 1/8in (3.18 mm) or 4 mm ID. A Dia 4 chuck will not grip anything that is not exactly 4.0 mm OD.
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 PC4M5D-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. It joins Dia 4 mm soft nylon or polyurethane tubing to an M5x0.8 male thread (sealed by gasket, PT standard family). The fitting body is SUS304 stainless steel and all parts are copper-free; release button and chuck are POM. The -S suffix does not change any pressure or temperature figure versus the standard PC4M5D-S-free brass version.
No sealant. M5 ports in this catalogue seal with a dedicated gasket supplied on the fitting, so simply thread it into the M5-tapped port - adding paste or tape can crack a small M5 boss or block the port. On the tube side it holds only Dia 4 mm OD tubing exactly; it will not grip 1/8in (3.18 mm) tube, 4 mm ID hose, or Dia 6 tube. If your tube is Dia 6 on the same M5 port, use the PC6M5-S.
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