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

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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
Product Questions & Answers 4

Product Questions & Answers

i got an orfs fitting that calls for a 5/8 tube size o-ring. is this the right one?
Question by: Ralph M on Aug 26, 2025, 9:15 AM
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.
Answer by: Customer Support on Aug 27, 2025, 8:14 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
Question by: Bobby T on Mar 2, 2026, 3:25 PM
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.
Answer by: Customer Support on Mar 4, 2026, 11:49 AM
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?
Question by: Rusty H on Sep 4, 2025, 12:17 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.
Answer by: Customer Support on Sep 5, 2025, 1:38 PM
What temperature range can this O-ring handle?
Question by: Bobby P on Mar 3, 2026, 8:07 PM
This Buna-N O-ring is designed to maintain its integrity from -40 to +250 degrees Fahrenheit.
Answer by: Customer Support on Mar 5, 2026, 6:57 AM

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