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Steel Adapter, 1/2-20 Male JIC 37 deg Flare To 7/16-20 Male JIC 37 deg Flare, Straight

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Description & Features

Designed for SAE 37° flare connections, this steel straight union adapter transitions from a 1/2-20 Male JIC 37° flare thread to a 7/16-20 Male JIC 37° flare thread in a compact, inline configuration. The Steel Adapter, 1/2-20 Male JIC 37 deg Flare To 7/16-20 Male JIC 37 deg Flare, Straight belongs to the Eaton Aeroquip 2027 Series and carries catalog number C1AW73. With an overall length of 1.37 inches, it fits where space is limited without sacrificing connection integrity.

Suited for hydraulic, instrumentation, and chemical processing systems, this adapter provides a reliable male-to-male JIC union where line sizes need to be stepped down. Steel construction makes it appropriate for demanding industrial service across a range of compatible fluid types.

SKU: 2027-5-4S

Supplier Part Number (MPN): 2027-5-4S

Alternate Part Numbers: C1AW73, MI-00311666, MINO-00015F61162

Specifications

Connection Size 1
5/16 in
Connection Size 2
1/4 in
Connection Type
Male JIC
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male SAE 37 deg JIC Flare
Dimension Standards
SAE 070101/J514
Dimensions
1.37 in L
Finish
Dura-Kote™
Fitting Type
Union
Hex Size
0.563 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-65 to 400 deg F
Series
2027 Series
Thread Size
1/2-20 x 7/16-20
Tube OD
1/4 in

Product Questions & Answers (3)

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Question by: Daryl R on Apr 19, 2025, 1:47 PM
What’s the overall length of this adapter?
Answer by: Customer Support on Apr 21, 2025, 8:33 AM
It measures 1.37 inches end to end.
Question by: Stan B on Feb 14, 2026, 1:55 PM
got a 1/2-20 JIC fitting on my hydraulic line and need to step it down to a 7/16-20 JIC on the other end, this the right part for that?
Answer by: Customer Support on Feb 15, 2026, 3:29 PM
That's what this adapter is built for. One end is 1/2-20 male JIC 37 degree flare, the other is 7/16-20 male JIC 37 degree flare, straight configuration. Both ends use the same SAE 37 degree flare seating, so as long as your mating fittings are female JIC on both sides, you're good to go.
Question by: Duane J on Feb 26, 2026, 10:49 AM
i got two lines that are both jic flare, but one’s 1/2-20 and the other is 7/16-20. is this the straight union that ties those together?
Answer by: Customer Support on Feb 28, 2026, 6:56 AM
It’s a straight union adapter with male JIC 37 degree flare on both ends, one side 1/2-20 and the other 7/16-20, so it’s meant to join those two JIC flare thread sizes together.

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