Airtac PC Threaded Straight Connector PC4M3D-M
The AirTAC Airtac PC Threaded Straight Connector PC4M3D-M 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 PC4M3D-M
The PC4M3D-M is AirTAC's mini-series PC male connector, the smallest one-touch fitting in the resin catalogue. It joins Dia 4 mm soft nylon or polyurethane tube to an M3 external thread, a port size reserved for the mini series where a 1/8 inch stud would simply not fit on the component. The trailing D colours the POM release button black; on a PC part the body and stud stay standard, so it is a visual coding option rather than a different fitting.
It runs on the resin/brass spec profile: 0-1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure, and -20 to +70 C. To connect, push the tube squarely into the chuck until it bottoms; the stainless spring gasket and POM chuck grip it, and pressing the release ring frees it again. All threads in this catalogue are PT standard.
Airtac PC Threaded Straight Connector PC4M3D-M Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC4M3D-M |
|---|---|
| Type | Male connector |
| Series | PC |
| Connection | Push-in one-touch |
| Size class | Mini series (-M) |
| 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. 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 PC4M3D-M
| 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. |
| -M | Mini series. |
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 PC4M3D-M Is Used
Miniature pick-and-place needle gripper
Feeds Dia 4 mm tubing to the tiny M3 port on a compact needle or vacuum gripper head, where a standard 1/8 inch connector is physically wider than the mounting face it has to sit beside.
Benchtop analytical and dosing pump
Connects reagent or wash airline to the M3 fittings of small peristaltic and syringe pumps, where the -750 mmHg vacuum rating covers the suction side of the pump head.
Compact sensor and pilot air take-off
Steps a machine's main air line down to Dia 4 mm to feed proximity-sensor purge air or a small pilot valve port, using the black release button as a fast visual code for low-pressure pilot circuits.
Is the Airtac PC Threaded Straight Connector PC4M3D-M the Right Part?
In the mini ladder the only size below this one is Dia 3.2 tube (PC3M3D-M), used for hair-fine pilot and sensor lines; stepping up from Dia 4 leaves the mini series entirely and takes you to the standard PC6M5, which pairs Dia 6 tube with an M5 thread and a larger body. Match the M3 to the actual tapped port - it exists precisely because small actuators and sensors cannot accept M5 or 1/8 inch. Tube OD must match exactly: this connector holds Dia 4 mm tube only and will not grip 5/32 inch imperial tube, which belongs to the separate N-series inch catalogue.
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 PC4M3D-M FAQ
It is a mini-series PC male connector for Dia 4 mm tube with an M3 thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum is -750 mmHg, proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C with soft nylon or polyurethane tubing. Proof pressure is 1.5 times working pressure, so brief spikes are absorbed but continuous over-pressure is not.
On a PC part the D suffix makes the release button black while the body and stud stay in the standard finish - it is a colour-coding option, not a different pressure rating or thread. Note also that the release ring frees the tube by pushing it toward the fitting while holding the ring down; there is no need to unscrew anything or cut the tube to release it.
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Covers non-human-caused product damage.
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Standard parts are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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