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Steel Adapter, 3/8-18 Male NPT Run To 9/16-18 Male JIC 37 deg Flare Run & Branch, Tee

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Description & Features

This steel adapter is engineered for optimal performance in hydraulic, instrumentation, and chemical processing systems. It features a 3/8-18 Male NPT run and a 9/16-18 Male JIC 37-degree flare run and branch, forming a robust tee configuration. As part of the Eaton Aeroquip range, this adapter ensures compatibility and reliability in demanding industrial environments. Dimensions include an A measurement of 1.22 and B and C measurements of 1.14 each, making it suitable for various applications where precision and durability are paramount.

Designed with high-quality materials, the adapter provides excellent fluid compatibility as detailed in Eaton’s technical documentation. The product is recognized within industry circles for its robust construction and compatibility with a wide array of fluids, ensuring long-term, leak-free performance. The Eaton Aeroquip brand is known for quality, making this adapter a trusted choice for professionals requiring reliable connections in complex systems.

SKU: 2028-6-6S

Supplier Part Number (MPN): 2028-6-6S

Alternate Part Numbers: C1AX41, MI-00313797, MINO-00015F62331

Specifications

A
1.22
Alternate Part Numbers
Alternate Part Number C1AX41, Alternate Part Number MI-00313797, Alternate Part Number MINO-00015F62331
Application
Other - Hydraulic, instrumentation, and chemical processing systems
B
1.14
C
1.14
Drop Dimension
1.14
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Gender 3
13558
End Size 1
0.38
End Size 2
0.56
End Size 3
0.56
End Type 1
NPTF
End Type 2
SAE 37
End Type 3
SAE 37
Minimum Working Temperature
-65
Supplier Part Number
2028-6-6S
Thread 1
3/8-18
Thread 2
9/16-18
Thread Sealant
No
Tube O.D.
0.38
Tube O.D.
0.38
Product Weight
0.19 lbs

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Product Questions & Answers (3)

Question by: Norm P on Aug 1, 2025, 12:42 PM
trying to tee off a 3/8-18 pipe port into two -6 JIC lines. is this the right fitting?
Answer by: Customer Support on Aug 3, 2025, 6:04 AM
Function-wise, it matches that setup. It is a steel tee adapter with a 3/8-18 male NPTF on the run, and two 9/16-18 male SAE 37 degree flare ends for the run and the branch, which is the common -6 JIC flare thread size.
Question by: Marvin M on Dec 31, 2025, 8:26 AM
Got a line running 3/8 NPT male off a pump and need to tee off it into a JIC 37 degree flare setup. This the right piece for that?
Answer by: Customer Support on Jan 2, 2026, 8:27 AM
That's exactly the configuration this adapter handles. The run ports are 9/16-18 male JIC 37 degree flare and the branch comes off a 3/8-18 male NPT thread, so you can split a JIC flare line while tying in an NPT-threaded port all in one fitting. Eaton Aeroquip builds the 2028 series for hydraulic, instrumentation, and chemical processing systems, so it's at home in that kind of working environment.
Question by: Jean S on Mar 2, 2026, 8:24 AM
What kind of applications is this tee adapter good for?
Answer by: Customer Support on Mar 3, 2026, 9:50 PM
It's designed for hydraulic, instrumentation, and chemical processing systems.