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

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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
Aeroquip® by Danfoss
Color
Black
Dash Size
16
Durometer
90
Inside Diameter
0.61 in
Material
Buna-N
Segment Code
A
Series
FF9446 Series
Suitable For Use With
SAE J518 Split Flange
Width e Dimensions
0.07 in

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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.

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