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Brass Adapter, 1/4-18 Male NPT To 1/2-20 Male SAE 45 deg Flare, Straight

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Description & Features

The Danfoss / Eaton SAE 45 Flare Male Connector is meticulously designed for versatile applications such as LP and natural gas flammable liquids instrumentation refrigeration power steering hydraulic and pneumatic systems.

This connector features a sturdy brass construction ensuring long-lasting durability and reliability under various temperature conditions with a minimum working temperature of -65F. The connector integrates a 1/4-18 Male NPT end with a 1/2-20 Male SAE 45 Flare end offering secure and leak-proof connections.

Its enhanced threading with Thread 1 at 1/4-18 and Thread 2 at 1/2-20 ensures a precise fit for professional-grade installations. The absence of a thread sealant allows for flexible application tailored to specific requirements.

Engineered to support a tube O.D. of 0.31 inches this fitting exemplifies the fusion of robustness and precision essential for high-pressure environments. The adapter is adaptable across numerous industrial applications highlighting its multifunctionality and engineering excellence.

MPN: 48X5X4

Supplier Part Number: 48X5X4

Specifications

Alternate Part Numbers
Alternate Part Number C1HQ21, Alternate Part Number MI-00333178, Alternate Part Number MINO-00015X06747, Alternate Part Number MINO-00925F73052
Application
Other - LP and natural gas, flammable liquids (special order), instrumentation, refrigeration, power steering, hydraulic and pneumatic systems
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Size 1
0.50
End Size 2
0.25
End Type 1
SAE 45
End Type 2
NPTF
L
1.34
Minimum Working Temperature
-65
Supplier Part Number
48X5X4
Thread 1
1/4-18
Thread 2
1/2-20
Thread Sealant
No
Tube O.D.
0.31
Tube O.D.
0.31
Product Weight
0.06 lbs

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Product Questions & Answers (1)

Question by: Shane W on Jan 3, 2026, 5:16 PM
fitting goes from 1/4 NPT on one end to a 1/2-20 SAE 45 flare on the other end -- that right? trying to confirm before i order a handful of these for a power steering line job
Answer by: Customer Support on Jan 5, 2026, 2:49 PM
Correct on both counts. One end is 1/4-18 male NPT and the other is 1/2-20 male SAE 45 degree flare, straight configuration. Both ends are male, so make sure your mating connections are female on each side. The tube outside diameter this flare end is sized for is 0.31 inches. Brass construction throughout, no thread sealant applied from the factory, so you can treat the NPT end however your application calls for.