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Steel Adapter, 3/4-16 Male JIC 37 deg Flare To 7/16-20 Male JIC 37 deg Flare, Straight

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Description & Features

Part of the Eaton Aeroquip 2027 Series, this Steel Adapter, 3/4-16 Male JIC 37 deg Flare To 7/16-20 Male JIC 37 deg Flare, Straight connects two male SAE 37° flare fittings of different thread sizes in a straight configuration, making it well suited for hydraulic, instrumentation, and chemical processing systems where a size transition between JIC lines is required.

Constructed from steel and carrying an overall length (A) of 1.51 inches, this union-style adapter is designed for reliable inline connections without changing flow direction. The dual SAE 37° flare seats on both ends provide leak-resistant sealing consistent with JIC fitting standards. With catalog number C1AW78, this fitting is cross-referenced across multiple Eaton Aeroquip product lines.

SKU: 2027-8-4S

Supplier Part Number (MPN): 2027-8-4S

Alternate Part Numbers: C1AW78, MI-00311669, MINO-00015F61164

Specifications

A
1.51
Alternate Part Numbers
Alternate Part Number C1AW78, Alternate Part Number MI-00311669, Alternate Part Number MINO-00015F61164, Alternate Part Number MINO-00925X08996
Application
Other - Hydraulic, instrumentation, and chemical processing 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
0.75
End Size 2
0.44
End Type 1
SAE 37
End Type 2
SAE 37
Minimum Working Temperature
-65
Supplier Part Number
2027-8-4S
Thread 1
3/4-16
Thread 2
7/16-20
Thread Sealant
No
Product Weight
0.10 lbs

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Product Questions & Answers (3)

Question by: Dale C on Jan 3, 2026, 7:51 PM
Will this adapter work for connecting two JIC flared fittings together?
Answer by: Customer Support on Jan 5, 2026, 12:22 PM
Yes, this adapter is designed to connect two SAE 37-degree flared fittings. It's a straight union adapter, so both fittings will be in line with each other.
Question by: Warren M on Dec 22, 2025, 6:45 AM
got a hose end with 3/4-16 jic, and the other side is 7/16-20 jic. is this the straight union that’ll hook those two together
Answer by: Customer Support on Dec 23, 2025, 7:08 AM
For tying two JIC 37 degree flare connections together, this adapter is a straight union with a 3/4-16 male JIC 37 degree flare on one end and a 7/16-20 male JIC 37 degree flare on the other.
Question by: Lance M on Jun 13, 2025, 9:02 PM
Got a fitting on my hydraulic line that's 3/4-16 JIC and I need to step it down to a 7/16-20 JIC connection. This the right part for that?
Answer by: Customer Support on Jun 15, 2025, 6:46 AM
That's what this adapter is built for. One end is 3/4-16 male JIC 37 degree flare, the other is 7/16-20 male JIC 37 degree flare, both using the same SAE 37 degree flare seating angle. It's a straight configuration, so there's no angle or offset involved. Both sides thread in male, so you'd need female JIC ports or fittings on whatever you're connecting to on each end.