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05MJ-04MP STRAIGHT

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Description & Features

The 05MJ-04MP Straight adapter by Brennan Industries Inc boasts a robust design and precision engineering. It is constructed from high-quality straight steel, ensuring durability and reliability in demanding applications.

This adapter supports a maximum dynamic pressure of 6,000 Psi, making it suitable for high-pressure environments. With an overall length of 1.420 mm, the compact design allows for seamless integration into various systems.

The male JIC SAE 37-degree flare and male NPTF threads follow the SAE J514 and SAE J476 specifications, respectively, ensuring compatibility and compliance with industry standards. The thread sizes are 1/2-20 for Thread B1 and 1/4-18 for Thread B2.

This series 2404 fitting is meticulously crafted to meet stringent requirements, providing reliable performance and ease of installation. The thread drills measure 0.234 mm for Thread B1 and 0.281 mm for Thread B2, contributing to its precision fit.

Supplier Part Number: 2404-05-04

California Residents: PROP-65 WARNING

Specifications

Connection Size 1
5/16 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
1.42 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
0.234 in
Thread B2 Drill Dimensions
0.281 in
Thread Size
1/2-20 x 1/4-18

Product Questions & Answers (3)

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Question by: Jerry E on Jul 6, 2025, 8:40 AM
trying to swap a fitting on a hose, is this the one that goes from a 1/2-20 male JIC flare over to a 1/4-18 male NPTF?
Answer by: Customer Support on Jul 7, 2025, 8:45 AM
Match-up wise, it is a straight adapter with a male JIC SAE 37 degree flare on one end in 1/2-20 (SAE J514) and a male NPTF on the other end in 1/4-18 (SAE J476).
Question by: Phil F on Feb 12, 2026, 6:39 AM
What kind of pressure can this fitting handle before it starts giving trouble?
Answer by: Customer Support on Feb 13, 2026, 9:05 PM
Rated for 6,000 PSI dynamic pressure, so it holds up well in high-demand hydraulic lines. That rating comes from Brennan's Series 2404 spec, and it covers the kind of working pressure you'd see in most industrial and mobile hydraulic setups.
Question by: Kirk B on Jan 25, 2026, 9:20 AM
What size threads does this thing have? I'm having a heck of a time finding the right adapter.
Answer by: Customer Support on Jan 27, 2026, 8:06 AM
It has a 1/2-20 thread for B1 and a 1/4-18 thread for B2.

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