Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF603
The AirTAC Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF603 is a genuine bulkhead connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeBulkhead connector
- SeriesPMF
- 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 PMF Female Thread Bulkhead Straight Through Fitting PMF603
The PMF603 is an AirTAC PMF bulkhead connector, the one-touch fitting made to carry a Dia 6 mm tube through a sheet-metal wall. The fitting body passes through a drilled hole and is clamped with its locknut, leaving the 3/8 in PT male thread proud of the panel on one side and the push-in socket on the other. Tube seals by hand: push it home and the internal chuck grips the OD, press the release ring and it slides free.
This is the resin and brass spec profile, not the metal BP line. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it holds vacuum to -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and service temperature runs -20 to +70 C with soft nylon or polyurethane tubing. The POM button and chuck sit on an aluminium-alloy guide with a stainless spring gasket and NBR O-ring; the body is PBT on a brass stud, and the PT thread arrives with sealant already applied so it is ready to wind into the port.
Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF603 Technical Specifications
| Model | Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF603 |
|---|---|
| Type | Bulkhead connector |
| Series | PMF |
| 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 PMF Female Thread Bulkhead Straight Through Fitting PMF603
| PMF | Bulkhead 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 PMF Female Thread Bulkhead Straight Through Fitting PMF603 Is Used
Control cabinet pass-through
Mount the PMF603 through the wall of a packaging machine's electrical cabinet so 6 mm tubing reaches valve manifolds outside while the sealed 3/8 in PT thread ties into plumbing inside - no ferrules, no compression nuts.
Indexing table lubrication feed
On a rotary indexing table, route the Dia 6 nylon lubrication line through the machine deck with the bulkhead nut, then hand-tighten to the 3/8 in PT port on the metering block.
Vacuum test fixture panel
The -750 mmHg vacuum rating lets this fitting carry suction lines for a PCB test fixture through the fixture backplate, with the 6 mm PU tube snapping in and out between product changeovers.
Is the Airtac PMF Female Thread Bulkhead Straight Through Fitting PMF603 the Right Part?
On the PMF ladder this Dia 6 size sits between Dia 4 and Dia 8; stepping down lightens the fitting and suits signal-grade actuators, stepping up to 8 mm feeds cylinders that want more bore without changing the panel hole much. Match the 3/8 in PT thread to a port of the same nominal size - winding it into a 1/4 in port means re-tapping or adapting, which is where leaks start. Note the two different threads on one part: the port side is 3/8 in PT, while the locknut that clamps the panel is M14x1, the standard bulkhead nut for Dia 6 tube.
Tube OD must match exactly. A Dia 6 socket will not hold 1/4 in (6.35 mm) imperial tube, and a 6 mm line pushed into a Dia 4 fitting will not seal at all. If the run needs to turn or step down at the panel, a PL male elbow or a PG different-diameter union may be the better shape.
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 PMF Female Thread Bulkhead Straight Through Fitting PMF603 FAQ
It is an AirTAC PMF bulkhead connector for Dia 6 mm tube with a 3/8 in PT male thread and an M14x1 panel locknut. 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, for soft nylon or polyurethane tubing. Standard colour is grey.
Drill the panel, pass the threaded body through, and clamp it with the M14x1 bulkhead nut - that is the nut size matched to Dia 6 tube in this range. The 3/8 in PT port thread arrives with sealant pre-applied, so winding it straight into a mating PT port gives a sealed joint without extra tape. The tube side needs no tools: push the 6 mm tube in to grip, press the release ring to free it.
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