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3/8″ x 1/2 NPTF DOT Air Brake Push-In Female Connector
3/8″ x 1/2 NPTF DOT Air Brake Push-In Female Connector
$20.00
Straight brass DOT push-in female connector joins 3/8-inch OD nylon air-brake tube to a 1/2 NPTF male-threaded connection. Features an integrated release collet, tube support and internal seal for compatible truck and trailer pneumatic systems.
Part number DQ66DOT0608.
Description
Overview
The 3/8 x 1/2 NPTF female connector connects 3/8-inch outside-diameter nylon air-brake tubing to a 1/2 NPTF male-threaded port. The straight brass body keeps the tubing aligned, while the larger female port distinguishes this version from smaller-threaded connectors.
Features
- Push-to-connect collet accepts 3/8-inch OD imperial nylon tube.
- Internal 1/2 NPTF thread mates with a matching male pipe connection.
- Brass hex body for tightening.
- Integrated tube support, gripping collet and O-ring seal.
Specifications and Materials
The complete fitting includes its retained release collet, tube support and internal seals. The push-in connection needs no separate compression nut or olive.
Part number: DQ66DOT0608.
See the manufacturer DOT air brake push-in fitting chart
Compatibility and Fitment
Measure the tube outside diameter, not its internal bore. Select this 3/8 x 1/2 NPTF female connector for a 1/2 NPTF male thread. Do not substitute a 1/2-inch tube connector or a 1/2 BSP threaded fitting. Tube size and thread size are independent selection checks.
These cross-references show where this part replaces the part numbers and applications listed. Some installations may need minor changes. 35-660608, 35660608, NFP114-6-8, NFP11468
Related Parts
Compare these sizes when the tube or threaded port differs from the connection above.
| Use | Part number | Part type |
|---|---|---|
| Related version | DQ66DOT0604 | 3/8-inch tube x 1/4 NPTF female connector |
| Related version | DQ66DOT0606 | 3/8-inch tube x 3/8 NPTF female connector |
| Related version | DQ66DOT0808 | 1/2-inch tube x 1/2 NPTF female connector |
Compliance and Safety
This DOT fitting family meets ADR 38/05, FMVSS 571.106, SAE J2494/3 and SAE J1131 requirements. Depressurise the circuit first. Cut the tubing square, remove scored ends and insert it fully into the collet. Check retention, then leak-test the tube and threaded joints under pressure.
Trailer Applications
Use this connector in compatible truck and trailer brake, suspension or auxiliary pneumatic systems where 3/8-inch nylon tubing meets a 1/2-inch male port without an elbow.
Cross-reference and Suitability
This part cross-references to or suits the following equivalent part numbers and compatible alternatives:
| 35-660608 | 35660608 | NFP114-6-8 |
| NFP11468 |
Why Choose ICS Trailers
ICS Trailers supplies imperial air fittings for truck and trailer repairs. Send the old connector’s photo, tube OD and thread details if you need identification help.
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Online prices apply to website orders only. In-store pricing may differ.
