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Steel Adapter, 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring) To 7/16-20 Male JIC 37 deg Flare, Straight

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Description & Features

Steel Adapter 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring) To 7/16-20 Male JIC 37 deg Flare Straight offers robust reliability in high-pressure hydraulic applications. Engineered by Brennan Industries Inc this adapter ensures precise and leak-proof connections between SAE O-Ring Boss and JIC fittings.

This steel adapter features threads of 1-1/16-12 and 7/16-20 making it ideal for various industrial environments where durable connections are required. Its seamless integration minimizes downtime and ensures consistent performance.

Designed for straightforward installation this adapter is built to withstand rigorous use. Made with premium materials it offers exceptional longevity and resilience.

MPN: 6400-04-12-O

Supplier Part Number: 6400-04-12-O

Specifications

A
1.65
Alternate Part Numbers
Alternate Part Number 6400-04-12, Alternate Part Number A202702-12-4S, Alternate Part Number C1BX15, Alternate Part Number MI-01604053, Alternate Part Number MINO-00028Q18758
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
Supplier Part Number
6400-04-12-O
Thread 1
1-1/16-12
Thread 2
7/16-20
Thread Sealant
No
Tube O.D.
0.25
Tube O.D.
0.25
Product Weight
0.28 lbs

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Product Questions & Answers (2)

Question by: Glen M on Jan 15, 2026, 7:26 AM
adapter goes from the bigger ORB port down to a JIC fitting, that right? trying to figure out if this'll work for a return line i'm hydraulic connections up
Answer by: Customer Support on Jan 17, 2026, 6:05 AM
That's exactly what it does. One end is a 1-1/16-12 male SAE O-Ring Boss and the other is a 7/16-20 male JIC 37 degree flare. The ORB side threads into a female ORB port, and the JIC side connects to a standard female JIC swivel or fitting. It runs straight through with no angle, so keep that in mind when you're figuring out your line routing.
Question by: Floyd H on Oct 24, 2025, 12:45 PM
Will this adapter hold up okay in a hydraulic system running around 3000 psi?
Answer by: Customer Support on Oct 25, 2025, 6:30 PM
For hydraulic applications needing robust reliability, this steel adapter is a solid choice. It's designed to provide secure, leak-proof connections between SAE O-Ring Boss and JIC fittings, so it should handle that pressure.