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#6 MORB X #4 MP

Description & Features

A male O-ring boss to male pipe adapter, the #6 MORB X #4 MP is a hydraulic fitting from Brennan Industries designed to connect a #6 O-ring boss port to a #4 male pipe thread. This type of adapter is commonly used in hydraulic circuits where a transition between ORB and NPT thread forms is required at a port or component interface.

Brennan Industries fittings are manufactured to meet industry standards for hydraulic applications, making this adapter a reliable choice for use in fluid power systems requiring a secure, leak-resistant connection at the specified thread sizes.

SKU: 6401-06-04

Supplier Part Number (MPN): 6401-06-04-O

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 6401-06-04-O	Product Weight 0.07 lbs

Product Questions & Answers (1)

Question by: Rex F on Dec 15, 2025, 6:52 PM

Just want to make sure, this is the fitting I need to go from an O-ring boss to a pipe thread, right?

Answer by: Customer Support on Dec 17, 2025, 1:49 PM

That's correct. This #6 MORB X #4 MP adapter is specifically designed to connect a #6 male O-ring boss port to a #4 male pipe thread.