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DANFOSS / EATON FLEXMASTER - CODE FX

Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	End Size 1 3.50	End Size 2 3.50	End Type 2 Line/Hose/Tube	ICC Tube and Pipe Joints	Item Type Flexmaster Gasket	Language English	Minimum Working Temperature -25	Net Pack Quantity Units EA	NMFC 50	Product Material Buna-N	Product Width 5.17	Supplier Part Number NK1000063N350	Product Weight 0.36 lbs

Product Questions & Answers 2

Product Questions & Answers

got a flexmaster gasket job, both ends are 3.5. is NK1000063N350 the right size for that?

Question by: Gary F on Mar 5, 2026, 8:22 AM

The key callouts are End Size 1 = 3.5 and End Size 2 = 3.5, and it’s a Flexmaster gasket meant for line, hose, or tube connections. If your joint takes a 3.5 inch gasket on both ends, this one matches that sizing.

Answer by: Customer Support on Mar 6, 2026, 11:17 AM

Got a 3.5 inch Flexmaster connection that needs a new gasket and I ain't sure this is the right one. What end sizes does this thing come in?

Question by: Neal Y on Oct 2, 2025, 8:53 PM

Both ends on this gasket are sized at 3.5 inches, so if your connection is a standard 3.5 inch Flexmaster fitting on both sides, you're looking at the right part. It's built for line, hose, and tube connections, which covers most of the common setups you'd run into on hydraulic lines using that fitting style.

Answer by: Customer Support on Oct 4, 2025, 3:28 PM