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Steel Adapter, 1/4-18 Female NPT Branch To 7/16-20 Male JIC 37 deg Flare Run, Tee

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Description & Features

The Eaton Aeroquip Steel Adapter provides a robust solution for hydraulic, instrumentation, and chemical processing systems. Featuring a 1/4-18 Female NPT branch and a 7/16-20 Male JIC 37-degree flare run, this adapter is designed for dependable performance in demanding applications. Constructed from high-quality steel, it ensures durability and reliable connection integrity under pressure.

This adapter is part of the Eaton 2031 Series, known for its versatility and compatibility with various fluid types, as outlined in the provided documentation. The dimensions A: 0.88 and B: 0.98, make it suitable for precise fitment in complex assemblies, enhancing system efficiency and reliability.

SKU: 2031-4-4S

Supplier Part Number (MPN): 2031-4-4S

Alternate Part Numbers: C1AX69, MI-00314254, MINO-00015F62722

Specifications

a Dimensions
0.88 in
b Dimensions
0.98 in
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
FNPT, Male JIC Swivel
Connection Type 1
Male SAE 37 deg JIC Flare Swivel
Connection Type 2
Male SAE 37 deg JIC Flare Swivel
Connection Type 3
Female NPTF
Dimension Standards
SAE 070427/J514
Dimensions
2.44 in L
Drop Dimensions
0.88 in
Finish
Dura-Kote™
Fitting Type
Tee
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-65
Series
2031 Series
Thread Size
7/16-20, 1/4-18
Tube OD
1/4 in

Product Questions & Answers (2)

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Question by: Rhonda T on Oct 23, 2025, 4:51 PM
Running a 1/4 NPT female branch port off a JIC line, this tee set up to handle that without needing extra fittings in between?
Answer by: Customer Support on Oct 25, 2025, 9:32 AM
That's exactly what this adapter is built for. The branch port is 1/4-18 Female NPT and the run is 7/16-20 Male JIC 37 degree flare, so you can tap off a JIC line and transition to an NPT branch connection all in one fitting. No additional adapters needed for that particular combination. It's part of Eaton Aeroquip's 2031 Series and is suited for hydraulic, instrumentation, and chemical processing systems.
Question by: Cody K on Jun 1, 2025, 11:33 AM
trying to tee off a 1/4 npt port into a jic line, is this the right adapter?
Answer by: Customer Support on Jun 3, 2025, 11:04 AM
For that kind of branch-off, it matches the connection types described: a 1/4-18 female NPT branch and a 7/16-20 male JIC 37 degree flare run, in a tee style adapter.

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