SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

12MJ-08MJ STRAIGHT

Ask A Question

Description & Features

The 12MJ-08MJ Straight adapter from Brennan Industries Inc excels in demanding industrial environments. Crafted from high-quality straight steel, it guarantees robustness and reliability under high pressure.

With a maximum dynamic pressure of 5,000 Psi, the product is capable of sustaining intense operational conditions. The overall length of 1.950 mm ensures compactness without sacrificing functionality.

Featuring male JIC SAE 37-degree flare threads on both ends, the adapter adheres to SAE J514 specifications, making it highly compatible with a wide range of applications in the industrial sector.

The thread sizes are meticulously designed: B1 at 1-1/16-12 and B2 at 3/4-16, optimizing secure and efficient connections. This makes it suitable for usage in hydraulic systems where standard and dependable fittings are required.

Supplier Part Number: 2403-12-08

California Residents: PROP-65 WARNING

Specifications

Connection Size 1
3/4 in
Connection Size 2
1/2 in
Connection Type
Male JIC
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male SAE 37 deg JIC Flare
Dimension Standards
SAE J514
Dimensions
1.95 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
1-1/8 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
5000 psi
Series
2403 Series
Thread 2 Drill Dimensions
0.391 in
Thread B1 Drill Dimensions
0.609 in
Thread Size
3/4-16 x 1-1/16-12

Product Questions & Answers (3)

Sign In Hover me Please sign in to submit a question
Question by: Jean W on Sep 8, 2025, 4:55 PM
Is this adapter okay for systems pushing 5,000 PSI?
Answer by: Customer Support on Sep 9, 2025, 5:11 PM
This straight adapter is indeed suitable for systems with dynamic pressures up to 5,000 PSI, ensuring reliable performance under intense operational conditions.
Question by: Travis D on Jan 11, 2026, 1:59 PM
both ends on this thing are male JIC 37-degree flare - so what exactly does it connect, two female JIC fittings on a hydraulic line?
Answer by: Customer Support on Jan 12, 2026, 2:30 PM
Correct setup. Both ends carry male JIC SAE 37-degree flare threads, so you'd be threading each end into a female JIC fitting on either side of the connection. It's a reducer-style straight adapter, stepping down from a 1-1/16-12 thread on one end to a 3/4-16 on the other. That makes it useful when two lines or ports need to tie together but aren't the same thread size. Both ends conform to SAE J514, so compatibility with standard JIC hydraulic components is built in.
Question by: Todd H on Apr 23, 2025, 4:50 PM
got a hose end that’s 1-1/16-12 JIC, and the other side needs to be 3/4-16 JIC. is this the straight adapter for that?
Answer by: Customer Support on Apr 25, 2025, 10:56 AM
For connecting two male JIC SAE 37 degree flare ends with different sizes, this adapter matches 1-1/16-12 on one end (B1) and 3/4-16 on the other (B2), both built to SAE J514.

Tell us what you need and we'll get back to you.

Fields marked * are required.