12MFS-08MAORB STRAIGHT FF6400-12-08

Specifications

Alternate Part Numbers Alternate Part Number AFF1852T1208S	Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number FS6400-12-08-O	Product Weight 1.00 lbs

Product Questions & Answers 3

Product Questions & Answers

What size is this fitting, for hose purposes?

Question by: Dale E on Sep 12, 2025, 8:34 PM

This adapter uses a -12 MFS (Male Fuel Swivel) connection on one side and a -08 MAORB (Male Adjustable O-Ring Boss) on the other. Be sure to match these specs to your hose and port sizes.

Answer by: Customer Support on Sep 14, 2025, 7:21 AM

Got a spot on the line where I need a straight adapter going from a 12 MFS fitting to an MAORB port, this the one for that?

Question by: Rhonda R on Sep 30, 2025, 8:56 PM

That's what the FS6400-12-08 is built for. It connects a 12-size male flareless fitting on one end to a minus-8 male ORB port on the other, in a straight configuration. No adjustable end on this one, so you get a fixed, secure fit without needing to fiddle with positioning after installation. Brennan makes these to tight tolerances, so the connection comes out clean and stays that way.

Answer by: Customer Support on Oct 2, 2025, 4:31 PM

trying to swap out an old straight adapter, is FF6400-12-08 the same thing as FS6400-12-08-O?

Question by: Curt M on Nov 20, 2025, 9:07 AM

For ordering and replacement, FF6400-12-08 is the SKU and FS6400-12-08-O is the supplier part number for the same Brennan Industries straight adapter.

Answer by: Customer Support on Nov 21, 2025, 8:37 PM