Description
Forged brass DOT push-in bulkhead union with 1/4″ push-to-connect tube ends on both sides, designed to pass 1/4″ SAE J844 nylon air brake tubing through a panel or firewall with a jam nut. Meets D.O.T. FMVSS 571.106 and SAE J1131 air brake performance requirements; commonly cataloged as 02482-04.
Specifications
| Manufacturer | Midland Industries |
|---|---|
| Part Number | 820400 |
| Part Type | DOT Push-In Forged Brass Bulkhead Union |
| Tube OD (both sides) | 1/4″ |
| Body Material | Forged Brass |
| Seal | Buna-N O-ring |
| Working Pressure | Vacuum to 150 PSI |
| Temperature Range | -40°F to +200°F |
| Compliance | DOT FMVSS 571.106, SAE J1131 |
| Tubing Compatibility | SAE J844 nylon air brake tubing |
Cross References
This part replaces or is equivalent to the following part numbers:
- Tectran: PL1377-4
- Velvac: 16840
- Parker: PC1477-4
- Alkon: AQ82-DOT-4
- Norgren: 94450704M
- Anchor: 1874X4X4
- Also known as: 02482-04, 262BHPPDOT-4, 274PC-4, DQ82DOT-4, NP62BH-4
Applications
Used throughout Class 6–8 commercial truck and trailer pneumatic systems wherever DOT-rated air brake tubing connects to a threaded port:
- Air brake system plumbing — service, supply, and control lines on tractors, semi-trailers, and straight trucks
- Air tank, relay valve, quick-release, brake chamber, and dryer port connections
- Air suspension lines, height-control valves, and ride-height plumbing
- Air-operated accessories: seats, fifth wheels, air horns, door locks, mirrors, shift controls
- Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, and Western Star tractors and trailers
Verify tube OD and port thread size before ordering. Tubing must be cut square, deburred, and fully seated to achieve a proper seal.
