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Steel Adapter, 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring) Socket Hex Plug

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Description & Features

Manufactured by Eaton Aeroquip, this steel adapter features a 1-1/16-12 male SAE O-Ring Boss (straight thread) connection and a socket hex drive, designed for secure, leak-resistant termination points in hydraulic circuits. The straight thread O-ring sealing method provides reliable performance across a range of demanding industrial environments.

The Steel Adapter, 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring) Socket Hex Plug is rated for use across marine, military, chemical processing, pulp and paper, food and beverage processing, and offshore drilling applications. With dimensions of 0.75 (A), 0.56 (B), and 1.25 (C), it fits within space-constrained installations where consistent sealing integrity is critical.

Part of the Eaton Aeroquip FF2138 series, this adapter is also referenced under catalog number C1CV26.

SKU: FF2138-12S

Supplier Part Number (MPN): FF2138-12S

Alternate Part Numbers: C1CV26, MI-02607263, MINO-00015J37512

Specifications

A
0.75
Alternate Part Numbers
Alternate Part Number C1CV26, Alternate Part Number MI-02607263, Alternate Part Number MINO-00015J37512
Application
Marine/Military, Chemical Processing, Pulp and Paper Industries, Food and Beverage Processing, Off-Shore Drilling
B
0.56
C
1.25
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Size 2
0.75
End Type 1
SAE ORB
Minimum Working Temperature
-40
Seal Part if Included
22617-12
Supplier Part Number
FF2138-12S
Thread 2
1-1/16-12
Thread Sealant
No
Tube I.D. 2
0.57
Tube O.D.
0.75
Tube O.D.
0.75
Product Weight
0.06 lbs

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Product Questions & Answers (4)

Question by: Lee A on Feb 6, 2026, 9:05 AM
What kinda environments can this adapter handle? I work in a chemical plant, and things get pretty nasty sometimes.
Answer by: Customer Support on Feb 7, 2026, 4:27 PM
These steel adapters are suitable for use in chemical processing environments, as well as marine/military applications, pulp and paper industries, and food and beverage processing. They can also handle off-shore drilling conditions.
Question by: Eddie W on Mar 24, 2025, 2:39 PM
i got a port that’s 1-1/16-12 ORB, is this the right plug for it?
Answer by: Customer Support on Mar 26, 2025, 7:52 AM
Match the thread to your port and you are in the right neighborhood. This is a steel socket hex plug with a 1-1/16-12 male SAE O-Ring Boss straight thread, and it uses seal part 22617-12 for the seal.
Question by: Ronnie S on May 9, 2025, 10:11 AM
What industries is this plug actually built for? Got a marine application and want to make sure it ain't gonna be a problem.
Answer by: Customer Support on May 10, 2025, 2:56 PM
Marine use is one of the listed applications for this fitting, right alongside military, chemical processing, pulp and paper, food and beverage, and offshore drilling. That covers a pretty wide range of demanding environments, so a marine setup fits well within what this part was made to handle. It's an Eaton Aeroquip FF2138 series adapter, and those tend to show up in places where a reliable seal under pressure matters.
Question by: Rhonda B on Jul 24, 2025, 6:17 PM
got a port i need to cap off, is this the kind of plug that seals with an o-ring or tape
Answer by: Customer Support on Jul 26, 2025, 11:17 AM
Seals on an O-ring at the SAE O-Ring Boss straight thread, so you are not relying on thread tape for the seal. It is a 1-1/16-12 male ORB plug with a socket hex for tightening.