Danfoss / Eaton Male SAE O-Ring TO FemaleSTC STRA

Description & Features

Constructed from carbon steel with Dura-Kote plating, this straight adapter provides corrosion resistance that meets ASTM B117 salt spray standards, a practical advantage in demanding hydraulic environments. The adapter connects a male SAE O-Ring Boss (ORB) end measuring 7/16 in. to a female STC end at 3/8 in., making it well suited for systems requiring a transition between these two connection types in a straight configuration.

The Danfoss / Eaton Male SAE O-Ring to Female STC Straight Adapter belongs to the Aeroquip FF3042 Series, which is engineered to perform above standard SAE pressure thresholds and complies with SAE J1176 and DIN 2ST certifications. With a minimum working temperature rated to -40°F, this adapter is suitable for cold-climate hydraulic applications. The series offers extensive style variety, supporting broad compatibility across hydraulic circuit designs.

SKU: FF3042-0406S

Supplier Part Number (MPN): FF3042-0406S

Specifications

Brand
Aeroquip® by Danfoss
Connection Size 1
1/4 in
Connection Size 2
3/8 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
30 mm L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
19 mm
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
FF3042 Series
Thread Size
7/16-20

Product Questions & Answers (1)

Question by: Tommy P on Mar 25, 2026, 7:26 AM
What kind of rust protection does this adapter have?
Answer by: Customer Support on Mar 26, 2026, 2:50 PM
Dura-Kote plating gives it good corrosion resistance, meeting ASTM B117 salt spray standards. That's a plus if you're using it in a place where things tend to rust easily.

Tell us what you need and we'll get back to you.

Fields marked * are required.