
The AirTAC Airtac PC Threaded Straight Connector PC804D 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.
The PC804D is an AirTAC PC male connector, the straight threaded one-touch fitting that joins a Dia 8 mm soft nylon or polyurethane tube to a 1/2 inch PT male port. Push the tube in and the stainless spring gasket and chuck grip it against the POM seal; press the release button and the tube slides straight back out. The grey POM button on this SKU is delivered in the D black version - on the PC series the D suffix changes only the release button, not the brass body, so the fitting you bolt in is the familiar grey-bodied PC with a black press point for colour-coded circuits.
This is the resin-line spec profile, not the metal BPC line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa and a temperature window of -20 to +70 C. The thread seat is brass with a brass stud and arrives with sealant already applied, so no additional tape or dope is needed before it goes into the port.
| Model | Airtac PC Threaded Straight Connector PC804D |
|---|---|
| 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.
| 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. |
A 1/2 inch PT manifold inlet on a solenoid valve island is a natural landing point for this connector - the PC804D drops an 8 mm drop line straight off the supply gallery without an adapter.
Feeding the 1/2 inch rear port of an 8 mm-line air cylinder on a small pneumatic press or clamping station, where the black release button stands out against the grey body for quick identification at the cell.
Routing an 8 mm nylon line from a receiver tank or compressor outlet down to a filter-regulator-lubricator unit, with the PC804D making the push-in break point for seasonal maintenance.
On the 1/2 inch thread row of the PC ladder the tube options are Dia 6, 8, 10 and 12, so PC804D sits in the middle of that group. Step down to PC604 if the port is being fed by 6 mm lines - the same thread, a narrower bore, lower air demand per stroke. Step up to PC1004 for a 10 mm supply serving longer runs or higher-consumption actuators. PC804D is the right pick when the machine already runs 8 mm tubing and the connection point is a large 1/2 inch port such as a valve manifold inlet or a big cylinder head. There is no larger thread than 1/2 inch on the PC series, so this is the top of the threaded ladder - for a bigger bore you move to a flange or hard-piped solution instead.
Tube OD must match exactly: an 8 mm chuck will not seal 1/4 inch or 5/16 inch tube, even when it looks close. Match the PT male thread to the female port and hand-start it before tightening; the pre-applied sealant does the rest.
Quick checklist
The PC804D is a PC series one-touch male connector for Dia 8 mm tube with a 1/2 inch PT male thread. 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 the operating temperature range is -20 to +70 C. It suits soft nylon or polyurethane tubing. The body seat and stud are brass, the button and chuck are POM, and the D suffix here means a black release button; on PC parts the D changes the button only. The thread arrives with sealant applied.
No. The internal chuck and gasket are sized to the exact tube OD, so the PC804D accepts 8 mm tube only and will leak or release with anything else. For 10 mm on the same 1/2 inch thread order PC1004; for 6 mm on that thread order PC604. Mixing imperial tube into a metric one-touch fitting is the most common cause of blow-off at pressure, so measure the tube outside diameter before ordering.
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