3/8 in. x 3/8 in. Push-In x Male NPT DOT Elbow, Composite
3/8 in. x 3/8 in. Push-In x Male NPT DOT Elbow, Composite
Sizes in This Series
Composite 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 1/8 in. | 690402SC | $5.99 | Add to cart |
| 3/8 in. x 3/8 in. (this page) | 690606SC | $11.99 | — |
| 5/8 in. x 1/2 in. | 691008SC | $19.99 | Add to cart |
Overview
The Midland 690606SC is a D.O.T. 90-degree male elbow joining a 3/8 in. push-to-connect port to a 3/8 in. male NPT thread. Its UV- and vibration-resistant composite body makes it well suited to air-brake and trailer plumbing, while the one-touch push-in connection seats tubing without tools. The fitting is D.O.T. and SAE compliant and offers a positional swivel for final orientation after installation.
Technical Specifications
| MPN | 690606SC |
| Fitting Type | 90-degree Male Elbow |
| Connection 1 | 3/8 in. Push-to-Connect |
| Connection 2 | 3/8 in. Male NPT |
| Thread Size | 3/8 - 18 |
| Pressure Rating | 145 psi |
| Temperature Rating | -40°F to 140°F |
Materials of Construction
| Body | Composite |
| Compliance | D.O.T. FMVSS 571.106 / SAE J1131 |
Typical Applications
Used in D.O.T. air-brake lines, trailer and truck air systems, and pneumatic controls where a lightweight, corrosion-free elbow is needed. The composite body resists road chemicals, UV exposure, and vibration, making it a common choice for exposed under-chassis runs on commercial vehicles.
Cross-Reference and Interchange
This composite D.O.T. elbow cross-references to these competitor and industry part numbers: 016266, 16266, 269PPSCDOT-6C, 369PTC-6-6, 501082, 98745, KV2L11-36S, QL1369-6C. 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
Is this elbow D.O.T. approved for air brakes?
Yes. The 690606SC meets D.O.T. FMVSS 571.106 and SAE J1131 for use on commercial-vehicle air-brake systems.
What tubing size does the push-in port accept?
The push-to-connect end accepts 3/8 in. OD D.O.T.-rated air-brake tubing.
Can it be repositioned after the threads are tightened?
Yes. The positional swivel lets you rotate the push-in leg into place after the NPT thread is set.
Does the NPT thread need sealant?
The male NPT end should be sealed with PTFE tape or pipe dope rated 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.