Brass SAE 45° Flare Adapter — Male Flare × Female NPT (FNPT)
The Brass SAE 45° Flare Adapter connects an SAE 45° flare tube line to a female NPT (FNPT) pipe thread — putting a male 45° flare on one end and a female tapered pipe thread on the other, so you can run a flared metal tube into a threaded male-NPT pipe, valve, or fitting. Forged from solid brass and built to the SAE J512 standard, it's the everyday workhorse for lower-pressure fuel, air, gas, and refrigerant connections.
Key specifications
- Style: SAE 45° flare female adapter — male 45° flare × female NPT (FNPT)
- Material: forged brass, corrosion resistant
- Standard: SAE J512 (45° flare)
- Flare sizes: 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8"
- Female NPT sizes: 1/8", 1/4", 3/8", 1/2", 3/4"
- Compatible tubing: copper, brass, aluminum, and welded steel tube that can be flared
- Typical service: low-pressure lines (generally well under 500 PSI)
Typical applications
Widely used on compressed air lines, automotive fuel and brake lines, LP and natural gas connections, refrigeration and HVAC refrigerant runs, power steering, and other low-pressure fluid and gas systems where a 45° flare seals against the mating flare and the female NPT end threads onto male pipe.
Choose the flare size to match your tube and the FNPT size to match your pipe thread. Every Brass SAE 45° Flare Adapter is forged brass and made to SAE J512, giving you a reliable, leak-tight, corrosion-resistant connection between flared tubing and threaded pipe.
NOTE: Actual product may be different from pictured!
Financing Options
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