TUBE UNION

Description & Features

Designed for straight inline connections in high-pressure hydraulic systems, this 2-inch tube OD Tube Union from Brennan Industries provides a rigid, metal-to-metal joining point between two tube ends of equal size. Both ports share a 2-1/2-12 UNF thread and a 1.813-inch drill diameter, making this a symmetrical, same-size connection on each end.

With an overall length of 2.110 inches and a 2.625-inch hex across the flats, the fitting is sized for use with standard hydraulic wrenching in demanding industrial environments. The K1 and K2 seat depths are each 0.485 inches, consistent with 37-degree flare (JIC) or similar tube end configurations. Part of Brennan's C2403 series, this union is suited for use in hydraulic circuits where a straight, in-line tube junction is required without change in direction or reduction in port size.

SKU: C2403-32-32

Supplier Part Number (MPN): C2403-32-32

Specifications

Brand
BRENNAN
b1 Drill Dimensions
1.813 in
b2 Drill Dimensions
1.813 in
Connection Size 1
2 in
Connection Size 2
2 in
Connection Type
Bite
Connection Type 1
SAE Flareless Bite
Connection Type 2
SAE Flareless Bite
Dimension Standards
SAE J514
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
2-5/8 in
k1 Depth Dimensions
0.485 in
k2 Depth Dimensions
0.485 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
1500 psi
Series
C2403 Series
Thread Size
2-1/2-12

Product Questions & Answers (1)

Question by: Janice B on Mar 8, 2026, 6:38 PM
What's the deal with the two different depths listed, the K1 and K2?
Answer by: Customer Support on Mar 9, 2026, 7:22 PM
Those refer to the seat depths on each side of the union, both measuring 0.485 inches. This depth is designed to accommodate 37-degree flare (JIC) or similar tube end configurations, ensuring a secure and leak-free connection.

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