3/8 in. x 1/2 in. Push-In x Male NPT DOT Elbow
3/8 in. x 1/2 in. Push-In x Male NPT DOT Elbow
Sizes in This Series
Brass D.O.T. push-in x male NPT 90-degree elbows. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1/4 in. x 3/8 in. | 690406 | $10.99 | Add to cart |
| 3/8 in. x 1/2 in. (this page) | 690608 | $15.99 | — |
Overview
The Midland 690608 is a brass D.O.T. 90-degree male elbow connecting a 3/8 in. push-to-connect port to a 1/2 in. male NPTF thread. Rated to 150 psi across a -40 to 200°F range, the solid-brass body stands up to heat and pressure cycling in commercial-vehicle air systems. The one-touch push-in connection seats 3/8 in. air-brake tubing without tools.
Technical Specifications
| MPN | 690608 |
| Fitting Type | 90-degree Male Elbow |
| Connection 1 | 3/8 in. Push-to-Connect |
| Connection 2 | 1/2 in. Male NPTF |
| Thread Size | 1/2 - 14 |
| Pressure Rating | 150 psi |
| Temperature Rating | -40°F to 200°F |
Materials of Construction
| Body | Brass |
| Compliance | D.O.T. / SAE air-brake |
Typical Applications
Specified for D.O.T. air-brake plumbing, trailer and tractor air lines, and pneumatic equipment where a durable brass elbow is preferred over composite. The 1/2 in. NPTF leg adapts the 3/8 in. push-in tubing to larger ported valves, reservoirs, and manifolds.
Cross-Reference and Interchange
This brass D.O.T. elbow cross-references to these competitor and industry part numbers: 02469-0608, 1569-6-8, 169PMTNS-6-8, 269PC-6x8, 269PPDOT-6D, 969-6-8PXDOT, APTC69-6D, AQ69-DOT-6X8, D7069DT-6D, NP69-6-8, PC1469-6D, PP69EF-DOT. Replacing one of these? Match nominal size, connections, and rating, or send us your part number and we will confirm the interchange.
Sizing and Installation Resources
- Push-to-Connect Fittings Selection Guide
- NPT Thread Tightening: Turns Past Hand-Tight
- Pipe Size Reference Chart
- Teflon Tape vs. Pipe Dope
Frequently Asked Questions
What tubing does the push-in end accept?
It accepts 3/8 in. OD D.O.T.-rated air-brake tubing.
Why brass instead of composite?
Brass tolerates higher temperatures and is preferred near heat sources or for long-service air-brake assemblies.
What is the pressure rating?
The 690608 is rated to 150 psi from -40°F to 200°F.
Does the NPTF thread need sealant?
NPTF dry-seal threads can self-seal, but PTFE tape or pipe dope is recommended for air service.
WARNING: This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.