Airtac PC Threaded Straight Connector PC4M5D
The AirTAC Airtac PC Threaded Straight Connector PC4M5D 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
The PC4M5D is an AirTAC PC series one-touch male connector, the smallest tube and thread pairing the PC line offers. It pushes onto Dia 4 mm soft nylon or polyurethane tubing at one end and threads into an M5x0.8 port at the other. Insert the tube until it bottoms out and the stainless spring gasket and chuck clamp it against pressure; press the POM release ring and the tube slides free again. The D suffix here colours the release button black - on the PC series the body itself stays as the standard grey finish, unlike most other AirTAC one-touch families where D changes the whole body.
This is the resin/brass spec profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature window of -20 to +70 C. Two details matter on this SKU. First, the M5 thread is sealed by a captive gasket rather than pre-applied thread sealant, so do not wrap it in PTFE tape. Second, the PC body is brass, with a POM button and chuck, aluminium-alloy guide and NBR O-ring doing the sealing work.
Airtac PC Threaded Straight Connector PC4M5D Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC4M5D |
|---|---|
| Type | Male connector |
| Series | PC |
| Connection | Push-in one-touch |
| 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 PC4M5D
| 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. |
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 Is Used
Miniature gripper on a pick-and-place head
Compact pneumatic grippers and suction-pad ejectors are usually ported M5 to save space. The PC4M5D feeds a Dia 4 nylon line straight into that port, and the black release button is easy to find with a fingertip when a gripper jaw has to be swapped during a changeover.
Lab and analyser instrument plumbing
Sampling valves, reagent manifolds and small pneumatic actuators inside analytical instruments commonly use M5 ports and 4 mm lines. The gasket-sealed M5 thread keeps sealing compound out of the air path, and brass construction suits clean dry instrument air.
Dense manifold block wiring-in
On a control manifold where eight or ten M5 ports sit within millimetres of each other, the straight PC4M5D body leaves the Dia 4 polyurethane drops exiting in line with the ports, keeping a crowded valve island tidy where an elbow would collide with its neighbour.
Is the Airtac PC Threaded Straight Connector PC4M5D the Right Part?
Dia 4 is the bottom of the PC ladder - there is nothing smaller, so step up if you need more flow capacity. PC6M5 takes Dia 6 tube on the same M5 thread; moving to Dia 6 more than doubles the bore area, which is worth doing if the actuator downstream cycles fast or the run is long. On the thread side, M5 is also the smallest port PC offers; the next step up for Dia 4 tube is the 1/8in PC401, which suits panels drilled for tapered PT ports instead of metric instrument threads.
Match the fitting to the port before anything else: M5x0.8 ports are common on compact manifolds, flow controls and small valve blocks but rare on cast cylinder heads. And remember the tube rule is absolute - a Dia 4 chuck will not grip 6 mm or 1/4in tube, no matter how similar they look.
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 FAQ
It is an AirTAC PC one-touch male connector for Dia 4 mm soft nylon or polyurethane tube with an M5x0.8 male thread. Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. The thread seals with a gasket, not sealant, and the D suffix means a black release button on the standard body.
No. The chuck and gasket in the PC4M5D are sized for Dia 4 mm tube only; a 6 mm tube will not seal and will blow off under pressure. Use the PC6M5, which has the same M5 thread but a Dia 6 chuck, or keep Dia 4 tube and move to a PC401 if you need a 1/8in thread instead.
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