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O-Ring for Bump Tube O-Ring Seal Fitting, -08 Size

Dash Size -08	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	I.D. 0.426 in	Materials HNBR (70 durometer)	O.D. 0.551 in	Supplier Part Number FF90178-13	Temperature Range -25 to +300	Thread Sealant No	Product Weight 1.06 lbs	Alternate Part Numbers Alternate Part Number 4033409, Alternate Part Number A/C-OR-8, Alternate Part Number C1EY13, Alternate Part Number G28863D1, Alternate Part Number MI-04069496, Alternate Part Number MINO-00015J59649

Product Questions & Answers 4

Product Questions & Answers

what kind of heat can these o rings take before they fail. we run some pretty hot lines

Question by: Duane H on Jan 8, 2026, 8:14 AM

Temperatures up to 300 degrees Fahrenheit are safely handled by the 70 durometer HNBR material. The working range on these goes from -25 all the way up to that +300 mark.

Answer by: Customer Support on Jan 10, 2026, 6:26 AM

got a bump tube o-ring seal fitting that takes an -08, is this the right o-ring size?

Question by: Hank B on May 31, 2025, 3:54 PM

The key callouts are the dash size and the ring dimensions. This one is a -08 O-ring with a 0.426 inch ID, 0.551 inch OD, and 0.0625 inch width, listed for bump tube O-ring seal fittings.

Answer by: Customer Support on Jun 2, 2025, 6:00 AM

What size is this O-ring? Just want to make sure it'll fit the fitting I have.

Question by: Phil W on Sep 12, 2025, 7:12 AM

It's a -08 size, so it'll fit any standard -08 bump tube O-ring seal fitting.

Answer by: Customer Support on Sep 14, 2025, 7:00 AM

what temp range does this o-ring hold up to? got a system that sees some pretty cold mornings and hot afternoons

Question by: Connie O on Oct 14, 2025, 9:04 AM

Rated from -25 up to 300 degrees Fahrenheit, so swings between cold startups and heat buildup during operation fall well within what this o-ring can handle. The HNBR material holds its shape and seal across that full range without needing any thread sealant applied during installation.

Answer by: Customer Support on Oct 15, 2025, 9:59 AM

Similar Products

Model Number	Dash Size	Materials	Temperature Range	I.D.	Width (E)	O.D.
FF90178-11	-06	HNBR (70 durometer)	-25 to +300	0.301 in	0.0625	0.426 in
FF90178-13	-08	HNBR (70 durometer)	-25 to +300	0.426 in	0.0625	0.551 in
FF90178-15	-10	HNBR (70 durometer)	-25 to +300	0.551 in	0.0625	0.676 in
FF90178-17	-12	HNBR (70 durometer)	-25 to +300	0.676 in	0.0625	0.801 in