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#4 MJ X #8 MP ST.

Description & Features

Engineered by Brennan Industries Inc, the #4 MJ X #8 MP ST. adapter is crafted from high-grade straight steel. Designed to endure a maximum dynamic pressure of 6,000 Psi, this adapter is suitable for demanding industrial environments.

This model aligns with SAE J514 standards for the Male JIC SAE 37-degree flare on Thread B1 (7/16-20), and SAE J476 standards for the Male NPTF on Thread B2 (1/2-14). The overall length of 1.680 mm ensures compatibility with various system requirements.

An industry staple, the #4 MJ X #8 MP ST. offers durable performance, making it an essential component in specialized applications.

Supplier Part Number: 2404-04-08

PROP-65 WARNING for California Residents: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 2404-04-08	Product Weight 0.13 lbs

Product Questions & Answers (2)

Question by: Peggy K on Jan 6, 2026, 10:21 AM

What size are the threads on this fitting?

Answer by: Customer Support on Jan 7, 2026, 5:24 PM

It's got a 7/16-20 Male JIC on one end and a 1/2-14 Male NPTF on the other.

Question by: Freddie R on Oct 27, 2025, 7:36 PM

pressure rating on this thing holds up to 6,000 psi right? got a system running pretty hard and need something that aint gonna give out on me

Answer by: Customer Support on Oct 29, 2025, 6:25 AM

Rated at 6,000 psi maximum dynamic pressure, so it can handle a hard-working system without issue. It's straight steel construction from Brennan Industries, built for demanding industrial use, so you're not dealing with a lightweight component here.