SAE 45° Brass Long Forged Nut — Female Flare, UNF Thread
The SAE 45° brass long forged nut is a female-flare tube nut forged from solid brass for durable, leak-tight connections on 45° flared tubing. Its extended, forged body delivers extra thread engagement and superior vibration resistance versus standard short nuts — a dependable choice for compressed-air, refrigeration, fuel, and hydraulic lines, and forged construction also holds up well in extreme cold.
Key specifications
- Type: SAE 45° flare long forged nut (female flare)
- Material: Solid forged brass
- Thread: UNF straight thread, sized to tube OD per the SAE J512 / SAE 45° standard
- Body: Extended, forged "long" length for added vibration resistance
- Compatible tubing: Copper, brass, aluminum, and mild-steel tube that can be 45° flared
- Temperature range: approx. -65°F to +250°F (-53°C to +121°C) at rated pressure
- Available tube sizes: 1/4", 3/8", 1/2", 5/8", 3/4"
Size & thread reference (SAE 45° standard)
- 1/4" tube — 7/16"-20 UNF
- 3/8" tube — 5/8"-18 UNF
- 1/2" tube — 3/4"-16 UNF
- 5/8" tube — 7/8"-14 UNF
- 3/4" tube — 1-1/16"-14 UNF
Typical applications
Widely used on compressed-air and pneumatic systems, refrigeration and HVAC lines, LP and natural gas, fuel and instrumentation lines, and low- to medium-pressure hydraulic tubing. To assemble, flare the tube end with a 45° flaring tool, thread the nut hand-tight, then wrench-tighten until firm plus about one-sixth of a turn.
Choose the SAE 45° brass long forged nut when you need a corrosion-resistant, vibration-tolerant female flare connection with extra thread engagement. Available in tube sizes from 1/4" through 3/4" to match your existing SAE 45° flared tubing.
NOTE: Actual product may be different from pictured!
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