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Steel Adapter, 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring) Socket Hex Plug

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Description & Features

This Eaton Aeroquip steel adapter features a 3/4-16 male SAE O-ring Boss (Straight Thread O-Ring) connection and a socket hex plug. This adapter is suitable for a variety of applications.

Designed for use in demanding environments, this steel adapter is commonly used in marine and military applications, as well as chemical, pulp and paper, and food and beverage processing.

Dimensions include A: 0.56, B: 0.31, and C: 0.88.

SKU: FF2138-08S

Supplier Part Number (MPN): FF2138-08S

Alternate Part Numbers: C1CV24, MI-02056519, MINO-00015J90465

Specifications

A
0.56
Alternate Part Numbers
Alternate Part Number C1CV24, Alternate Part Number MI-02056519, Alternate Part Number MINO-00015J90465
Application
Marine/Military, Chemical Processing, Pulp and Paper Industries, Food and Beverage Processing, Off-Shore Drilling
B
0.31
C
0.88
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Size 1
0.75
End Size 2
0.50
End Type 1
SAE ORB
Minimum Working Temperature
-40
Seal Part if Included
22617-8
Supplier Part Number
FF2138-08S
Thread 2
3/4-16
Thread Sealant
No
Tube O.D.
0.50
Tube O.D.
0.5
Product Weight
0.03 lbs

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Product Questions & Answers (4)

Question by: Hubert F on Jul 14, 2025, 6:27 PM
got a 3/4-16 male ORB port that needs to be capped off, this plug gonna seal it up right without needing any thread sealant tape or compound?
Answer by: Customer Support on Jul 16, 2025, 6:50 AM
No thread sealant needed on this one. The seal comes from the O-ring that's included with the plug, part number 22617-8. That O-ring seats against the boss face and does the sealing work, which is standard for SAE O-Ring Boss fittings. Keep the threads and seating surface clean and you'll get a solid seal without any tape or paste.
Question by: Harvey H on Apr 5, 2025, 1:08 PM
Reckon this'll hold up alright in a chemical plant environment? We use some pretty harsh stuff.
Answer by: Customer Support on Apr 6, 2025, 6:55 PM
Application-wise, this adapter is specified for chemical processing, so it should be suitable for that type of environment.
Question by: Wayne R on Oct 4, 2025, 12:20 PM
got a port i need to cap off, is this one of them straight thread o-ring boss plugs or am i lookin at the wrong thing
Answer by: Customer Support on Oct 6, 2025, 12:08 PM
Built for sealing an SAE O-Ring Boss straight thread port, this is a male ORB socket hex plug with 3/4-16 threads. It’s meant to close off an ORB port using the O-ring seal, not a tapered pipe thread seal.
Question by: Neal S on Nov 12, 2025, 11:02 AM
Will this here plug work alright in a marine hydraulic system?
Answer by: Customer Support on Nov 14, 2025, 6:32 AM
This Eaton Aeroquip adapter is suitable for marine applications, along with uses in chemical processing, pulp and paper, and even food and beverage industries.