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Steel Adapter, 3/8-18 Male NPT To 9/16-18 Male JIC 37 deg Flare, Straight

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Description & Features

Engineered for versatility, the Eaton Aeroquip Steel Adapter seamlessly connects hydraulic systems across diverse sectors, including marine, military, and chemical processing. This adapter features a 3/8-18 male NPT thread on one end and a 9/16-18 male JIC 37-degree flare on the other, ensuring a secure and reliable connection. Constructed from durable steel, it delivers robust performance in demanding environments such as off-shore drilling and food and beverage processing.

Renowned for its precision, the adapter is part of the Danfoss / Eaton 2021 Series, a trusted choice in the pulp and paper industries for its reliable functionality. The Eaton Aeroquip brand guarantees quality and consistency, meeting the high standards required in industrial applications.

SKU: 2021-6-6S

Supplier Part Number (MPN): 2021-6-6S

Alternate Part Numbers: 20011344, C1AV24, MI-00310134, MINO-00015F60064

Specifications

Connection Size 1
3/8 in
Connection Size 2
3/8 in
Connection Type
Male JIC, MNPT
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male NPTF
Dimension Standards
SAE 070102/J514
Dimensions
1.43 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
3/4 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40
Series
2021 Series
Thread Size
3/8-18, 9/16-18
Tube OD
3/8 in

Product Questions & Answers (2)

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Question by: Lee G on Jun 18, 2025, 10:32 AM
got a port that’s 3/8-18 npt and i need to go to a 9/16-18 jic. is this the straight adapter for that?
Answer by: Customer Support on Jun 20, 2025, 6:42 AM
For that thread combo, yes. One end is 3/8-18 male NPTF and the other end is 9/16-18 male SAE 37 degree flare (JIC), and it is a straight adapter with male threads on both ends.
Question by: Freddie R on Apr 27, 2025, 1:22 PM
Will this fitting work for connecting a 3/8" NPT pipe to a 9/16" JIC flare?
Answer by: Customer Support on Apr 28, 2025, 5:01 PM
Yes, this adapter is designed to provide a straight connection between a 3/8-18 male NPT pipe thread and a 9/16-18 male JIC 37-degree flare fitting.

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