Brass DOT Female Elbow
Brass DOT Female Elbow
Female NPT elbow adapters feature a female National Pipe Taper (NPT) thread and are designed for connecting nylon tubing at a 90-degree angle. Separately, DOT compression fittings are a specialized type of fitting essential for air brake systems. The adapter’s NPT thread creates a secure, leak-resistant seal when tightened onto a compatible male NPT fitting. FMVSS 121 certified.
Compression DOT Brake Fittings
Female NPT End: Seals to male-threaded valves/tanks
Compression End: Grips SAE J844 nylon tubing
Vibration-Resistant: Brass construction
Pressure Rating: 200 PSI (FMVSS 121 compliant)
Enables obstacle-clearing tubing routing in tight chassis spaces
Safety & Performance Features
- Automatic Slack Adjusters: Maintain optimal brake stroke distance as linings wear
- Spring Parking Brakes: Fail-safe engagement when air pressure drops below 4.2 bar
- Load-Sensing Valves: Proportion braking force to axle weight (prevents jackknifing)
- DOT Compliance: FMVSS 121-certified components • 200+ PSI operating pressure
DOT Fittings Specification
| Part# | Tube O.D* Female NPTF | PARKER | EATON | MAF | GATES | DIXON |
| 1581-3C | 3/16*1/8 | 270NTA-3-2 | 70NAB32 | |||
| 1581-4C | 1/4*1/8 | 270NTA-4-2 | 1470x4 | 38113 | G32154-0402 | 70NAB42 |
| 1581-4D | 1/4*1/4 | 270NTA-4-4 | 38114 | G32154-0404 | 7ONAB44 | |
| 1581-6C | 3/8*1/8 | 270NTA-6-2 | 38115 | G32154-0602 | 70NAB62 | |
| 1581-6D | 3/8*1/4 | 270NTA-6-4 | 1470x6 | 38116 | G32154-0604 | 70NAB641 |
| 1581-6E | 3/8*3/8 | 270NTA-6-6 | 38117 | G32154-0606 | 70NAB66 | |
| 1581-8E | 1/2*3/8 | 270NTA-8-6 | 1470x8 | 38118 | G32154-0806 | 70NAB86 |
| 1581-8F | 1/2*1/2 | 270NTA-8-8 | 38119 | G32154-0808 | 70NAB88 | |
| 1581-10F | 5/8*1/2 | 270NTA-10-8 | 38120 | G32154-1008 | 70NAB108 |
| Part# | Tube O.D* Female NPTF | Tectran | Automann | Fleet Pride | Fairview | Tramec Sloan |
| 1581-3C | 3/16*1/8 | 1370-3A | ||||
| 1581-4C | 1/4*1/8 | 1370-4A | 177.14704A | N70-4-2 | 1470-4A | S770AB-4-2 |
| 1581-4D | 1/4*1/4 | 1370-4B | 177.14704B | N70-4-4 | 1470-4B | S770AB-4-4 |
| 1581-6C | 3/8*1/8 | 1370-6A | 177.14706A | 1470-6A | S770AB-6-2 | |
| 1581-6D | 3/8*1/4 | 1370-6B | 177.14706B | N70-6-4 | 1470-6B | S770AB-6-4 |
| 1581-6E | 3/8*3/8 | 1370-6C | 177.14706C | N70-6-6 | 1470-6C | S770AB-6-6 |
| 1581-8E | 1/2*3/8 | 1370-8C | 177.14708C | 1470-8C | S770AB-8-6 | |
| 1581-8F | 1/2*1/2 | 1370-8D | 177.14708D | N70-8-8 | 1479-8D | S770AB-8-8 |
| 1581-10F | 5/8*1/2 | 1370-10D | 177.147010D | N70-10-8 | 1470-10D | S770AB-10-8 |
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