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Steel Adapter, 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring) Branch To 7/16-20 Male JIC 37 deg Flare Run, Tee

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Description & Features

This steel tee adapter features a 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring) branch connection to a 7/16-20 Male JIC 37 deg Flare run. The Eaton Aeroquip 203003 Series Steel Adapter is suitable for use in hydraulic, instrumentation, and chemical processing systems.

It facilitates connections between different hydraulic components, offering a reliable and leak-free seal.

SKU: 203003-4-4S

Supplier Part Number (MPN): 203003-4-4S

Alternate Part Numbers: C1AX58, MI-00319643, MINO-00015F65540

Specifications

a Dimensions
1.03 in
b Dimensions
0.89 in
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Male JIC, SAE ORB
Connection Type 1
SAE ORB
Connection Type 2
Male SAE 37 deg JIC Flare
Connection Type 3
SAE ORB
Dimension Standards
SAE 070429/J1926/J514
Dimensions
1.78 in L
Finish
Dura-Kote™
Fitting Type
Tee
Hex Size
0.563 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
203003 Series
Thread Size
7/16-20
Tube OD
1/4 in

Product Questions & Answers (1)

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Question by: Janet S on Jul 18, 2025, 1:18 PM
got a tee fitting in my hand marked 203003-4-4S, is that the one that goes from a -4 SAE O-ring boss over to -4 JIC on the run
Answer by: Customer Support on Jul 20, 2025, 6:53 AM
What you’ve got there is an Eaton Aeroquip 203003 Series tee adapter that ties a 7/16-20 male SAE O-ring boss (straight thread O-ring) branch into a 7/16-20 male JIC 37 degree flare run. It’s essentially a -4 size tee that transitions between ORB and JIC in that configuration.

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