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Steel Adapter, 3/4-16 Female JIC 37 deg Flare Swivel To 9/16-18 Male JIC 37 deg Flare, Straight

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Description & Features

Ideal for various industrial applications, this steel adapter ensures secure connectivity and efficient fluid transfer. Designed with precision, it features a 3/4-16 Female JIC 37-degree flare swivel and a 9/16-18 Male JIC 37-degree flare, delivering a straight configuration for streamlined installations. The robust construction from high-quality steel enhances durability, making it suitable for demanding environments.

Manufactured by the reputable Eaton Aeroquip, this adapter meets SAE 37-degree flare standards, ensuring compatibility and reliability. Its straightforward design allows for easy integration into existing systems, enhancing operational efficiency without the need for extensive modifications. This component is a critical choice for industry professionals seeking dependable and long-lasting performance.

SKU: 221501-8-6S

Supplier Part Number (MPN): 221501-8-6S

Alternate Part Numbers: C1BC71, MI-00315792, MINO-00015F63933

Specifications

A
1
Alternate Part Numbers
Alternate Part Number C1BC71, Alternate Part Number MI-00315792, Alternate Part Number MINO-00015F63933
Application
Other
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 1
0.50
End Size 2
0.38
End Type 1
SAE 37
End Type 2
SAE 37
Minimum Working Temperature
-65
Supplier Part Number
221501-8-6S
Thread 1
3/4-16
Thread 2
9/16-18
Thread Sealant
No
Tube O.D.
0.38
Tube O.D.
0.38
Product Weight
0.10 lbs

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Product Questions & Answers (3)

Question by: Lance G on Feb 7, 2026, 10:22 AM
trying to hook a 3/4-16 female JIC swivel up to a 9/16-18 male JIC, is that what this adapter does?
Answer by: Customer Support on Feb 8, 2026, 2:26 PM
It’s a straight steel reducer union that connects a 3/4-16 female JIC 37 degree flare swivel end to a 9/16-18 male JIC 37 degree flare end.
Question by: Ross B on Jan 15, 2026, 8:23 PM
Got a 3/4-16 female JIC line I need to bring down to a 9/16-18 male JIC fitting. This the right piece for that?
Answer by: Customer Support on Jan 17, 2026, 9:33 AM
That's what this adapter is built for. One end is a 3/4-16 female JIC 37 degree flare swivel, and the other is a 9/16-18 male JIC 37 degree flare. It runs straight through with no offset, so if your line and port are lined up and those are your thread sizes, this is the correct reducer adapter for that connection.
Question by: Dale E on Oct 27, 2025, 4:57 PM
Will this adapter work to connect a 3/4-16 female JIC to a 9/16-18 male JIC? Just want to make sure before I order.
Answer by: Customer Support on Oct 28, 2025, 8:02 PM
That's what this adapter is for. It's designed to connect those two sizes of JIC fittings with a 37-degree flare.