Description
Midland Industries MM-690404S DOT composite swivel male elbow: 1/4″ tube OD push-in collet on one end, 1/4″ NPT male pipe thread on the other, with a 90° elbow body. Composite construction meets FMVSS 571.106 / SAE J2494 air brake performance requirements. Used to make tight-radius connections between SAE J844 nylon air brake tubing and threaded ports on truck and trailer air systems.
Specifications
| Manufacturer | Midland Industries |
|---|---|
| Part Number | MM-690404S |
| Part Type | DOT Composite Swivel Male Elbow, 90° |
| Tube Size | 1/4″ OD |
| Pipe Thread | 1/4″ NPT male |
| Body Material | Composite (DOT-approved) |
| Compliance | FMVSS 571.106, SAE J2494, SAE J1131 |
| Tubing Compatibility | SAE J844 nylon air brake tubing |
Cross References
This part replaces or is equivalent to the following part numbers:
- Anderson Fittings: 02569-0404
- Velvac: 16244
- Tectran: 269PCS-4×4
- McMaster-Carr: 51915K32
- Midland Industries: MM-690404S, 690404S
- Also known as: 1869x4x4S, 269PPSDOT-4B, 269PPSDOT-4B-Y, 95411410M, 969-1-44, AQ69-DOTS-4X4, DQ69DOTS-4X4, DQ69S-44, NP69SW-4-4, PC1469SW-4B, PC1469SW4B, S269PMT-4-4
Applications
Use this DOT composite swivel male elbow anywhere a 1/4″ nylon air line meets a 1/4″ NPT female port:
- Tractor and trailer service / parking brake plumbing where space requires a 90° bend
- Air dryer, governor, and brake valve port connections
- Suspension dump valve, gladhand, and accessory air circuit terminations
- Class 6–8 tractors, refuse / dump / mixer chassis, and dry van / reefer / flatbed trailers
Push-in fittings require a clean square cut on SAE J844 nylon tubing and full insertion past the collet and O-ring for a sealed SAE J2494 connection. Confirm tube OD and pipe thread before ordering.
