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Male SAE O-Ring to Fem STC

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Description & Features

Eaton Aeroquip's carbon steel straight adapter is designed with a male SAE O-ring on one end and a female STC connection on the other. This Male SAE O-Ring to Fem STC offers design flexibility for various hydraulic applications.

The adapter features Dura-Kote plating, providing superior corrosion resistance. It meets ASTM B117, SAE J1176, and DIN 2ST standards and is suitable for minimum working temperatures down to -40 degrees.

SKU: FF3042-1212S

Supplier Part Number (MPN): FF3042-1212S

Specifications

Brand
Aeroquip® by Danfoss
Connection Size 1
3/4 in
Connection Size 2
3/4 in
Connection Type
Female STC, Male SAE ORB
Connection Type 1
Male SAE ORB
Connection Type 2
Female STC
Dimension Standards
SAE J1926/J1176
Dimensions
47 mm L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
32 mm
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
FF3042 Series
Thread Size
1-1/16-12

Product Questions & Answers (3)

Question by: Lance W on May 26, 2025, 5:35 PM
Got a fitting with a male SAE O-ring boss on one end, does this adapter cross over to a female STC on the other side, or am I reading the specs wrong?
Answer by: Customer Support on May 27, 2025, 9:05 PM
That's what it does. One end is a male SAE O-ring boss connection and the other is a female STC, so if your line has those two connection types on opposite ends, this straight adapter bridges them without needing additional fittings in between. It's carbon steel construction and carries Eaton Aeroquip's Dura-Kote plating, which holds up well against corrosion in demanding environments.
Question by: Keith C on Feb 2, 2026, 1:52 PM
What kind of corrosion resistance does this thing have?
Answer by: Customer Support on Feb 4, 2026, 6:15 AM
Dura-Kote plating gives it superior corrosion resistance, exceeding ASTM B117 standards.
Question by: Dwayne R on Apr 8, 2025, 9:04 AM
got a hose end with STC on it and i need to tie into an SAE o-ring port. is this the right kind of adapter?
Answer by: Customer Support on Apr 10, 2025, 7:54 AM
Function-wise, yes. It is a straight carbon steel adapter with a male SAE O-ring (SAE ORB) on one end and a female STC connection on the other, so it is meant to bridge those two connection types.

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