ADAPTER

Description & Features

Forged from steel in a 45-degree elbow configuration, this Male JIC to Male Nptf adapter is built for hydraulic systems requiring a directional thread transition. Thread B1 is a 5/16 in. Male JIC SAE 37-degree flare (1/2-20, per SAE J514), while Thread B2 is a 3/8-18 Male Nptf connection conforming to SAE J476. The forged steel construction supports a maximum dynamic pressure rating of 6,000 PSI, making it well-suited for demanding hydraulic circuit applications.

Part of the Brennan 2503-Fg series, this adapter provides a reliable 45-degree offset between two male threaded connections, useful where inline routing is impractical. California residents should note that this product is subject to Prop 65 requirements.

SKU: 2503-05-06-FG

Supplier Part Number (MPN): 2503-05-06-FG

Alternate Part Numbers: 2503-05-06, C1DW34

Specifications

Connection Size 1
5/16 in
Connection Size 2
3/8 in
Connection Type
Male JIC, MNPT
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male SAE NPTF
Cubic Inch Space L x W x H Dimensions
1.789 cu-in
Dimension Standards
SAE J514, SAE J476
Dimensions
0.95 in L
Finish
Trivalent Zinc-Plated
Fitting Type
45 deg Elbow
Hex Size
3/4 in
l Dimensions
0.95 in
Material
Steel
Material Construction
AISI C1045 Steel
Maximum Operating Pressure
6000 psi
Series
2503-FG Series
Thread 2 Drill Dimensions
0.406 in
Thread B1 Drill Dimensions
0.234 in
Thread B2 Drill Dimensions
0.406 in
Thread Size
1/2-20 x 3/8-18

Product Questions & Answers (1)

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Question by: Diane W on Jan 21, 2026, 8:56 PM
Will this fitting hold up okay if I'm pushing close to that 6,000 PSI rating on a regular basis?
Answer by: Customer Support on Jan 23, 2026, 7:35 PM
This adapter's forged steel construction is rated for a maximum dynamic pressure of 6,000 PSI, making it suitable for demanding hydraulic applications operating consistently near that pressure.

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