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O-Ring for O-Ring Face Seal Fittings & Adapters, 0.63 Inch

Description & Features

Designed specifically for split flange kits and O-rings, this Aeroquip by Danfoss/Eaton O-ring ensures optimal sealing in industrial settings. Constructed from Buna-N (90 durometer), it maintains integrity under extreme temperature ranges from -40 to +250 degrees Fahrenheit. The inner diameter measures 0.614 inches, while the outer diameter stands at 0.754 inches, forming a reliable seal for a tube size of 0.63 inches. Its width of 0.07 inches ensures a snug fit, crucial for maintaining operational integrity.

The O-Ring for O-Ring Face Seal Fittings & Adapters, 0.63 Inch, is a vital component for ensuring leak-proof connections. With no thread sealant needed, this durable O-ring guarantees reliable performance in demanding conditions.

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Supplier Part Number: FF9446-16

Specifications

Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	I.D. 0.614 in	Materials Buna-N (90 durometer)	O.D. 0.754 in	Supplier Part Number FF9446-16	Temperature Range -40 to +250	Thread Sealant No	Tube Size 0.63	Product Weight 0.01 lbs	Alternate Part Numbers Alternate Part Number C1CV53, Alternate Part Number MI-00443999, Alternate Part Number MINO-00015I00549, Alternate Part Number ORS-10

Similar Products

Model Number	Tube Size	Materials	Temperature Range	I.D.	Width (E)	O.D.
FF9446-11 ORS Fitting/Adapter O-Ring	0.25	Buna-N (90 durometer)	-40 to +250	0.301 in	0.07	0.441 in
FF9446-12 ORS Fitting/Adapter O-Ring	0.375	Buna-N (90 durometer)	-40 to +250	0.364 in	0.07	0.504 in
FF9446-14 ORS Fitting/Adapter O-Ring	0.5	Buna-N (90 durometer)	-40 to +250	0.489 in	0.07	0.629 in
FF9446-16 ORS Fitting/Adapter O-Ring	0.63	Buna-N (90 durometer)	-40 to +250	0.614 in	0.07	0.754 in
FF9446-18 ORS Fitting/Adapter O-Ring	0.75	Buna-N (90 durometer)	-40 to +250	0.739 in	0.07	0.879 in
FF9446-21 ORS Fitting/Adapter O-Ring	1	Buna-N (90 durometer)	-40 to +250	0.926 in	0.07	1.066 in
FF9446-25 ORS Fitting/Adapter O-Ring	1.25	Buna-N (90 durometer)	-40 to +250	1.176 in	0.07	1.316 in
22546-11 ORS Fitting/Adapter O-Ring	0.25	Neoprene (72 durometer)	-65 to +300	0.301 in	0.07	0.441 in

Product Questions & Answers (4)

Question by: Ralph M on Aug 26, 2025, 9:15 AM

i got an orfs fitting that calls for a 5/8 tube size o-ring. is this the right one?

Answer by: Customer Support on Aug 27, 2025, 8:14 PM

For ORFS fittings and adapters, this seal is sized for a 0.63 inch tube size and it measures 0.614 inch ID by 0.754 inch OD with a 0.07 inch width, so it matches the 0.63 tube size callout.

Question by: Bobby T on Mar 2, 2026, 3:25 PM

what's the temp range on these o-rings? got a line running pretty hot and need to know if buna-n can hold up

Answer by: Customer Support on Mar 4, 2026, 11:49 AM

Buna-N at 90 durometer holds up from negative 40 degrees Fahrenheit all the way up to 250 degrees Fahrenheit. If your line stays under that ceiling, you're in good shape with this material for standard hydraulic fluid service.

Question by: Rusty H on Sep 4, 2025, 12:17 PM

got a 0.63 inch tube line with an ORS face seal fitting, will this o-ring hold up if temperatures swing from real cold to pretty hot throughout the day?

Answer by: Customer Support on Sep 5, 2025, 1:38 PM

Buna-N at 90 durometer handles a range of -40 to +250 degrees Fahrenheit, so swings between cold startup conditions and normal operating heat are well within what this material can take. The 90 durometer hardness also helps it resist deformation under pressure, which keeps the face seal seated properly rather than letting it creep or extrude over time.

Question by: Bobby P on Mar 3, 2026, 8:07 PM

What temperature range can this O-ring handle?

Answer by: Customer Support on Mar 5, 2026, 6:57 AM

This Buna-N O-ring is designed to maintain its integrity from -40 to +250 degrees Fahrenheit.

O-Ring for O-Ring Face Seal Fittings & Adapters, 0.63 Inch

Description & Features

Specifications

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Product Questions & Answers (4)