Description
DOT-rated composite-body push-in 90° union elbow that joins two equal-size 5/32″ OD nylon air-brake tubing runs at a right angle. The Midland 655320C uses a glass-reinforced composite shell over brass push-in components for vibration, road-salt, and UV resistance, is rated to 145 PSI, and meets D.O.T. FMVSS 49 CFR 571.106 / SAE J2494-3 air brake requirements.
Specifications
| Manufacturer | Midland Industries |
|---|---|
| Part Number | 655320C |
| Part Type | DOT Composite Push-In Union Elbow (90°) |
| Connection 1 (Tube) | 5/32″ OD Push-to-Connect |
| Connection 2 (Tube) | 5/32″ OD Push-to-Connect |
| Body Material | Composite (glass-reinforced thermoplastic) with brass push-in components |
| Seal Material | Buna-N / Nitrile |
| Working Pressure | Up to 145 PSI |
| Temperature Range | -40°F to 140°F |
| Approvals | D.O.T. FMVSS 49 CFR 571.106; SAE J2494-3 |
| Operating Fluid | Compressed air only (not for liquids) |
Cross References
- Velvac 016282
- Tectran QL1365-25, 87644
- Phillips 12-91055
Applications
This composite push-in union elbow is designed for compressed-air plumbing on Class 5-8 trucks, tractors, and trailers, including:
- DOT air brake supply and control lines requiring a 90° change of direction
- Air suspension and air-bag plumbing
- Trailer air-line routing and gladhand pigtail connections
- Auxiliary air systems (air horns, axle locks, height-control valves)
For use with DOT-approved 5/32″ OD nylon air-brake tubing. Not for use with liquids or in towing-hitch / driveshaft-to-chassis connections per DOT restrictions. Verify tube outside diameter before ordering.









