Danfoss / Eaton 12MFF-12MORB-12MFF TEE WIN AFFO-12

Description & Features

Constructed from carbon steel with Dura-Kote plating for corrosion resistance, the Danfoss / Eaton 12MFF-12MORB-12MFF TEE WIN AFFO-12 is a tee adapter designed for hydraulic systems requiring three-port connectivity across mixed thread standards. The fitting combines two ORS male ends with one SAE O-Ring Boss male port, making it well suited for branching hydraulic lines where ORS and ORB connections must be joined at a single junction point.

Rated for operating pressures above SAE standards, this adapter supports demanding hydraulic circuit requirements. The carbon steel body with Dura-Kote finish provides reliable protection in harsh industrial environments. With a hex size of 1.38 inches and a drop dimension of 1.47 inches, it fits within compact assembly spaces. The Aeroquip-branded fitting is part of the FF1865T Series, which spans hundreds of adapter styles to accommodate varied configuration needs. Working temperature is rated down to -65°F.

SKU: FF1865T1212S

Supplier Part Number (MPN): FF1865T1212S

Alternate Part Numbers: C1EC71

Specifications

Brand
Aeroquip® by Danfoss
Connection Size 1
3/4 in
Connection Size 2
3/4 in
Connection Size 3
3/4 in
Connection Type
Male ORFS, Male SAE ORB
Connection Type 1
Male ORFS
Connection Type 2
Male ORFS
Connection Type 3
Male SAE Adjustable ORB
Dimension Standards
SAE 520428/J1453/J1926
Dimensions
3.64 in L
Drop Dimensions
1.47 in
Finish
Dura-Kote™
Fitting Type
Tee
Hex Size
1-3/8 in
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Operating Temperature
-40 to 250 deg F
Series
FF1865T Series
Thread Size
1-3/16-12 x 1-1/16-12

Product Questions & Answers (1)

Question by: Tommy B on Oct 27, 2025, 9:16 PM
Will this tee fitting work alright with both ORS and O-ring boss connections?
Answer by: Customer Support on Oct 29, 2025, 6:32 AM
It's designed to connect hydraulic lines that use both ORS (O-Ring Seal) and SAE O-Ring Boss connections, making it suitable for systems with mixed thread standards.

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