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Steel Adapter, 1-3/16-12 Male SAE O-Ring Face Seal To 1-11-1/2 Male NPT, Straight

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Description & Features

Designed for robust industrial applications, the Eaton Aeroquip FF2031T Series Steel Adapter is engineered for maximum durability and reliability. This straight adapter features a 1-3/16-12 male SAE O-Ring Face Seal connection to a 1-11-1/2 male NPT connection, ensuring a secure and leak-proof fit. Its high-quality steel construction makes it ideal for use in demanding environments such as marine and military use, chemical processing, pulp and paper industries, food and beverage processing, and off-shore drilling.

This adapter's precision design facilitates seamless integration into existing hydraulic systems, providing a reliable connection for fluid transfer under varying conditions. With a catalog number of C1EC86, it offers compatibility with a wide range of hydraulic fluids, as referenced in available fluid compatibility documentation.

SKU: FF2031T1216S

Supplier Part Number (MPN): FF2031T1216S

Alternate Part Numbers: C1EC86, MI-00306523, MINO-00015F55599

Specifications

Brand
Aeroquip® by Danfoss
Connection Size 1
3/4 in
Connection Size 2
1 in
Connection Type
Male ORFS, MNPT
Connection Type 1
Male ORFS
Connection Type 2
Male NPTF
Dimension Standards
SAE 520102/J1453
Dimensions
2.03 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
1-3/8 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
FF2031T Series
Thread Size
1-3/16-12 x 1-11-1/2

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Product Questions & Answers (1)

Question by: Judy R on Nov 12, 2025, 2:29 PM
what industries is this adapter actually built for? seen a lot of parts claim heavy duty but fall short out in the field
Answer by: Customer Support on Nov 13, 2025, 6:25 PM
Marine, military, chemical processing, pulp and paper, food and beverage, and offshore drilling are all listed applications for this part. That covers a pretty wide range of demanding environments, so it's not just a general-purpose fitting dressed up with marketing language. The steel construction backs that up for real-world use in those kinds of conditions.

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