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Steel Adapter, 13/16-16 Male SAE O-Ring Face Seal To 3/8-18 Male NPT, Straight

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Description & Features

Designed for demanding industrial environments, the Steel Adapter, 13/16-16 Male SAE O-Ring Face Seal To 3/8-18 Male NPT, Straight connects SAE O-Ring Face Seal (ORS) and male NPT threads in a compact, straight configuration. Manufactured by Eaton Aeroquip as part of the FF2031T series, this adapter is constructed from steel for durability in high-pressure hydraulic systems.

With an A dimension of 1.36, this adapter suits a range of industrial applications including marine and military equipment, chemical processing, pulp and paper industries, food and beverage processing, and off-shore drilling, environments where reliable, leak-resistant connections are critical. The SAE O-Ring Face Seal end provides a metal-to-metal seating surface with an elastomeric seal, reducing the risk of leakage under pressure compared to tapered thread connections.

SKU: FF2031T0806S

Supplier Part Number (MPN): FF2031T0806S

Alternate Part Numbers: C1GE94, MI-08051849, MINO-00015F55522

Specifications

A
1.36
Alternate Part Numbers
Alternate Part Number C1GE94, Alternate Part Number MI-08051849, Alternate Part Number MINO-00015F55522, Alternate Part Number MINO-00925X13082
Application
Marine/Military, Chemical Processing, Pulp and Paper Industries, Food and Beverage Processing, Off-Shore Drilling
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13556
End Size 1
0.81
End Size 2
0.38
End Type 1
ORS
End Type 2
NPTF
Minimum Working Temperature
-40
Supplier Part Number
FF2031T0806S
Thread 1
13/16-16
Thread 2
3/8-18
Thread Sealant
No
Tube O.D.
0.50
Tube O.D.
0.5
Product Weight
0.12 lbs

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Product Questions & Answers (3)

Question by: Keith H on Dec 17, 2025, 6:21 PM
Will this adapter hold up if I'm using it in a hydraulic system on a fishing boat? Saltwater is pretty corrosive.
Answer by: Customer Support on Dec 19, 2025, 6:18 AM
This adapter is made from steel, so it's durable enough for marine environments. It's also used in chemical processing, so it should be able to withstand saltwater.
Question by: Duane M on Aug 23, 2025, 3:18 PM
trying to hook an ORFS hose end to a pipe port, is this the right adapter or am i mixing stuff up
Answer by: Customer Support on Aug 25, 2025, 2:49 PM
For tying an SAE O Ring Face Seal male end to a male NPT threaded connection, this is the correct style. It is a straight steel adapter from the Eaton Aeroquip FF2031T series with a 13/16-16 male ORFS on one side and a 3/8-18 male NPT on the other.
Question by: Tony S on Oct 20, 2025, 3:47 PM
got a 3/8 NPT port on a pump housing and need to tie into a hydraulic line with an SAE O-ring face seal fitting, this the right adapter for that?
Answer by: Customer Support on Oct 21, 2025, 4:46 PM
That's exactly the application this part is built for. One end threads into your 3/8-18 NPT port on the pump housing, and the other end accepts a male SAE O-Ring Face Seal connection. The ORS end uses a metal-to-metal seating surface with an elastomeric seal, which gives you a much tighter, leak-resistant joint than a standard tapered thread connection would. It's a straight configuration, so no angling involved. Steel construction holds up well in high-pressure hydraulic systems. Part number is FF2031T0806S, also sold under C1GE94 if you're cross-referencing another supplier's catalog.