3/8 in. x 1/2 in. Push-In x Male NPT 45 DOT Elbow, Composite
3/8 in. x 1/2 in. Push-In x Male NPT 45 DOT Elbow, Composite
Sizes in This Series
Composite DOT 45-degree male elbows, push-to-connect x male NPT. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1/4 in. x 3/8 in. | 540406SC | $9.99 | Add to cart |
| 3/8 in. x 1/2 in. (this page) | 540608SC | $17.99 | — |
| 1/2 in. x 1/4 in. | 540804SC | $22.99 | Add to cart |
Overview
The 540608SC is a 3/8 in. push-to-connect x 1/2 in. male NPT DOT 45-degree elbow in lightweight composite, joining 3/8 in. nylon air-brake tubing to a 1/2-14 NPT port. Built for DOT FMVSS-571.106 air brake systems, the corrosion-free composite body is rated to 145 psi over -40°F to 140°F.
Technical Specifications
| MPN | 540608SC |
| Fitting Type | 45-deg Male Elbow |
| Connection 1 | 3/8 in. Push-to-Connect |
| Connection 2 | 1/2 in. Male NPT (1/2-14) |
| Pressure Rating | 145 psi |
| Temperature Range | -40°F to 140°F |
| Standard | DOT FMVSS-571.106 / SAE |
Materials of Construction
| Body | Composite (glass-reinforced polymer) |
| Collet / Seal | Composite collet, O-ring seal |
Typical Applications
Connects 3/8 in. nylon air brake supply line to a 1/2 in. NPT port at 45 degrees on trucks and trailers where a corrosion-free composite elbow saves weight versus brass on larger air lines.
Cross-Reference and Interchange
This 3/8 in. composite DOT 45 male elbow cross-references to these competitor and industry part numbers: 016947, 16947, 279PPSCDOT-6D, 501082, 98829, KV2K11-37S, QL1374-6D. 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
- Teflon Tape vs. Pipe Dope
- Pipe Size Reference Chart
FAQ
Why composite instead of brass?
Composite resists corrosion and road salt and weighs less, while meeting the same DOT air brake standard.
Is it DOT approved?
Yes, for DOT FMVSS-571.106 air brake systems.
What is the male thread?
1/2-14 NPT.
WARNING: This product can expose you to chemicals 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.