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Steel Adapter, 1-1/4-11-1/2 Male NPT To 1-5/16-12 Male JIC 37 deg Flare, Straight

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Description & Features

This steel adapter facilitates a secure connection between different hydraulic components. The straight adapter connects a 1-1/4-11-1/2 Male NPT to a 1-5/16-12 Male JIC 37 deg Flare.

Manufactured by Eaton Aeroquip, this adapter is suitable for use in demanding applications such as marine and military environments, chemical processing, pulp and paper industries, food and beverage processing, and off-shore drilling.

SKU: 2021-20-16S

Supplier Part Number (MPN): 2021-20-16S

Alternate Part Numbers: 20011364, C1AU92, FMC102-1270, MI-00310354, MINO-00015F60088

Specifications

Connection Size 1
1 in
Connection Size 2
1-1/4 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
2.4 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
1.688 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40
Series
2021 Series
Thread Size
1-5/16-12 x 1-1/4-11-1/2

Product Questions & Answers (4)

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Question by: Bobby S on Jun 24, 2025, 10:56 AM
Trying to hook a pipe port up to a JIC line. is this the straight adapter that goes from 1-1/4-11-1/2 male NPTF over to 1-5/16-12 male JIC 37 flare?
Answer by: Customer Support on Jun 26, 2025, 6:00 AM
For a straight pipe to flare connection, this adapter matches those exact thread callouts. One end is male NPTF 1-1/4-11-1/2 and the other end is male SAE 37 degree flare with 1-5/16-12 threads.
Question by: Hubert W on Dec 3, 2025, 11:57 AM
got a hose end with a 1-5/16-12 JIC flare on it. is this the straight adapter that’ll let me tie into a 1-1/4-11-1/2 NPT port?
Answer by: Customer Support on Dec 4, 2025, 12:38 PM
Function-wise, yes. It is a straight steel adapter with a 1-1/4-11-1/2 male NPT on one end and a 1-5/16-12 male JIC 37 degree flare on the other, so it’s meant to bridge a pipe-thread NPT connection to a JIC 37 degree flare connection.
Question by: Debbie C on Jan 25, 2026, 2:54 PM
Got a line running 1-1/4 NPT male on one end and need to tie into a JIC 37 degree flare fitting on the other side, this adapter do that straight through?
Answer by: Customer Support on Jan 26, 2026, 7:08 PM
That's what this one's built for. One end is 1-1/4-11-1/2 male NPT and the other is 1-5/16-12 male JIC 37 degree flare, so it bridges those two thread types in a straight configuration without any angle or offset. Both ends are male, so make sure your mating connections are female on both sides before ordering.
Question by: Shane S on Nov 30, 2025, 7:01 PM
What's the outside diameter of this adapter? Just want to make sure it'll fit in the space I have.
Answer by: Customer Support on Dec 2, 2025, 6:43 AM
The "A" dimension, which I believe is the widest point, is 2.4 inches. So make sure you have a bit more than that to work with.

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