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06MJ-04MP STRAIGHT

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Description & Features

The 06MJ-04MP Straight adapter by Brennan Industries Inc is engineered for robust industrial applications. Made from straight steel, it ensures high durability and reliability under extreme conditions. This series 2404 adapter features a Male JIC SAE 37 Degree Flare thread, compliant with SAE J514 specifications, and a Male NPTF thread, adhering to SAE J476 standards.

Designed to withstand a maximum dynamic pressure of 6,000 Psi, it offers exceptional performance in demanding environments. The adapter's overall length is 1.430 mm, with a Thread B1 drill size of 0.297 mm and a Thread B2 drill size of 0.281 mm. This ensures a precise fit and secure connections.

California residents should be aware of the PROP-65 WARNING associated with this product. It is a highly dependable component for various industrial fluid transfer systems, ensuring optimal efficiency and safety.

Supplier Part Number: 2404-06-04

Specifications

Connection Size 1
3/8 in
Connection Size 2
1/4 in
Connection Type
Male JIC, MNPT
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male SAE 30 deg NPTF
Dimension Standards
SAE J514, SAE J476
Dimensions
1.43 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
5/8 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Series
2404 Series
Thread 2 Drill Dimensions
0.281 in
Thread B1 Drill Dimensions
0.297 in
Thread B2 Drill Dimensions
0.281 in
Thread Size
1/4-18 x 9/16-18

Product Questions & Answers (3)

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Question by: Tommy T on Nov 25, 2025, 11:43 AM
trying to hook a 9/16-18 JIC hose end into a 1/4-18 NPTF port. is that what this adapter does?
Answer by: Customer Support on Nov 27, 2025, 7:06 AM
Function-wise it bridges those two thread types in a straight adapter: one side is a male JIC SAE 37 degree flare in 9/16-18 (SAE J514), and the other side is a male NPTF in 1/4-18 (SAE J476).
Question by: Eddie M on Nov 21, 2025, 6:39 PM
Will this fitting hold up if I'm running hydraulic fluid through it at high pressure all day long?
Answer by: Customer Support on Nov 23, 2025, 10:36 AM
With a maximum dynamic pressure rating of 6,000 PSI, this adapter is built to handle demanding hydraulic applications. It's made from straight steel for durability.
Question by: Harold C on Jan 11, 2026, 6:53 AM
9/16-18 JIC on one end and 1/4-18 NPTF on the other, that the right way to read this fitting?
Answer by: Customer Support on Jan 13, 2026, 6:26 AM
That's right. The B1 end is a 9/16-18 Male JIC with a 37-degree flare, built to SAE J514 spec. The B2 end is a 1/4-18 Male NPTF, conforming to SAE J476. So you've got a straight adapter that steps between those two thread types with no bends or offsets in the body.

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