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ADAPTER

Description & Features

The Adapter from Brennan Industries Inc. serves a critical role in industrial applications. Specially designed for male SAE O-ring boss to male NPTF connections this adapter ensures reliable performance with its high-quality straight steel construction. Thread B1 specifications conform to SAE J514 standards while Thread B2 adheres to SAE J476 standards.

With an overall length of 1.620 mm this component features NBR O-ring/seal material providing robust sealing properties. Thread B1 has a drill size of 0.609 mm and Thread B2 has a drill size of 0.406 mm. Effective for high-pressure environments the adapter is part of the 6401-O series and suited for various industrial settings.

Supplier Part Number: 6401-12-06-O

California Residents: PROP-65 WARNING

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 6401-12-06-O	Product Weight 0.27 lbs

Product Questions & Answers (2)

Question by: Larry S on May 30, 2025, 4:08 PM

What kind of connection does this adapter go between, and will it work with standard hydraulic fittings on a steel line?

Answer by: Customer Support on Jun 1, 2025, 6:26 AM

One end is a 1-1/16-12 male SAE O-ring boss, which follows SAE J514 spec, and the other end steps down to a 3/8-18 male NPTF thread per SAE J476. Both of those are common thread standards in hydraulic and fluid power systems, so if your ports match those sizes and types, it should fit right in without any adapting beyond what this piece already does.

Question by: Lance C on Mar 28, 2025, 8:22 PM

Is this adapter meant for high-pressure applications?

Answer by: Customer Support on Mar 30, 2025, 6:54 AM

This adapter is indeed effective for use in high-pressure environments, making it well-suited for a variety of industrial settings where that's needed.