1/4 in. x 1/8 in. Push-In x Male NPT DOT Swivel Elbow
1/4 in. x 1/8 in. Push-In x Male NPT DOT Swivel Elbow
Sizes in This Series
Brass DOT push-in swivel elbows. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1/4 in. x 1/8 in. (this page) | 690402S | $9.99 | — |
| 1/2 in. x 3/8 in. | 690806S | $15.99 | Add to cart |
Overview
The Midland 690402S is a forged brass D.O.T. swivel elbow connecting 1/4 in. push-in air brake tubing to a 1/8 in. male NPT port at 90 degrees. The swivel body lets you orient the tube run after threading the fitting tight, which simplifies routing in tight spaces. Built to FMVSS 571.106 and SAE J1131.
Technical Specifications
| Manufacturer Part # | 690402S |
| Tube Size (Push-In) | 1/4 in. |
| Thread Size | 1/8 in. Male NPT (1/8 - 27) |
| Connection Type | Push-to-Connect x Male NPT, Swivel 90° Elbow |
| Pressure Rating | 150 psi |
| Temperature Rating | -40°F to 200°F |
| DOT / SAE | FMVSS 571.106, SAE J1131 |
Materials of Construction
| Body | Brass |
| Collet / Grip Ring | Stainless steel gripper with O-ring seal |
Typical Applications
Routes 1/4 in. DOT air brake tubing around corners at valves, gladhands, and reservoirs on trucks, trailers, and buses. The swivel feature is handy where the tube must exit at a set angle but the port orientation is fixed by the thread.
Cross-Reference and Interchange
This DOT swivel elbow cross-references to these competitor and industry part numbers: 1579-4-2, 169PMT-4-2, 269PCS-4x2, 269PPSDOT-4A, APTC69S-4A, AQ69-DOTS-4X2, D7069DTS-4A, DOTS69-4-2, NP69SW-4-2, PC1469SW-4A, PL-1369-4A, PP69SC-DOT, S269PMT-4-2. 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 does the swivel do?
It lets the tube leg rotate after you tighten the threads, so you can aim the run without over- or under-tightening the joint.
Is it DOT approved?
Yes. It meets FMVSS 571.106 and SAE J1131, rated to 150 psi.
What tubing does it accept?
1/4 in. OD DOT-rated nylon air brake tubing, cut square and pushed fully in.
Does it need thread sealant?
A thin band of PTFE tape or pipe dope on the 1/8 in. male NPT threads is recommended.
WARNING: This product can expose you to chemicals including lead, which is 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.