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O-Ring for SAE J518 Split Flange Fittings & Adapters, 1.00 Inch

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Description & Features

Designed to complement SAE J518 split flange fittings and adapters, this O-ring by Danfoss Power Solutions (II LLC Aeroquip) delivers dependable sealing for your industry applications. The Buna-N (90 durometer) material ensures durability and excellent resistance within a temperature range of -40 to +250 degrees Fahrenheit.

With an inner diameter of 1.296 inches and an outer diameter of 1.574 inches, this O-ring is accurately sized for optimal fit within your fluid transfer systems. The 0.139-inch width (E) further ensures an effective seal, making it suitable for various operational environments.

The product model is specifically labeled as Split Flange O-Rings and is particularly apt for applications requiring high-pressure seal integrity. This O-ring, referenced by catalog number C1CV58, supports significant performance standards.

MPN: FF9446-219

Supplier Part Number: FF9446-219

Specifications

Dash Size
-16
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
Flange Size
1
I.D.
1.296 in
Materials
Buna-N (90 durometer)
O.D.
1.574 in
Supplier Part Number
FF9446-219
Temperature Range
-40 to +250
Thread Sealant
No
Product Weight
0.99 lbs
Alternate Part Numbers
Alternate Part Number C1CV58, Alternate Part Number MI-00298711, Alternate Part Number MINO-00015F47143, Alternate Part Number SFO-16

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Product Questions & Answers (5)

Question by: Marvin C on Mar 20, 2026, 11:41 AM
got a split flange setup, flange size 1. is this the right o-ring or am i barking up the wrong tree
Answer by: Customer Support on Mar 21, 2026, 12:35 PM
For a flange size 1 SAE J518 split flange connection, this O-ring matches that application. It is the split flange O-ring style in Buna-N (90 durometer) with a 1.296 inch ID and 1.574 inch OD.
Question by: Dustin A on Jan 13, 2026, 6:47 AM
Will this o-ring work with a standard 1-inch split flange fitting?
Answer by: Customer Support on Jan 15, 2026, 6:46 AM
This o-ring is specifically made for SAE J518 split flange fittings and adapters that are 1 inch in size. It should provide a reliable seal in those applications.
Question by: Earl P on Sep 15, 2025, 10:00 AM
Will this O-ring work with standard SAE J518 flanges? Just want to make sure before I order a bunch.
Answer by: Customer Support on Sep 17, 2025, 7:29 AM
It's designed to fit SAE J518 split flange fittings and adapters. The dimensions – 1.296" ID and 1.574" OD – should give you a dependable seal in those applications.
Question by: Melvin R on Nov 14, 2025, 7:29 PM
does this o-ring work with SAE J518 split flange setups, or is it only for certain types of flange fittings?
Answer by: Customer Support on Nov 16, 2025, 7:22 AM
SAE J518 split flange fittings and adapters are exactly what this o-ring is built around. The dimensions back that up too. You've got a 1.296-inch inner diameter, 1.574-inch outer diameter, and a 0.139-inch width. Those measurements are specific to the 1-inch, dash-16 split flange size, so if your fittings match that spec, the fit should be right on.
Question by: Marvin G on May 31, 2025, 12:35 PM
i’ve got a split flange setup, dash -16. is this o-ring the right size for that?
Answer by: Customer Support on Jun 1, 2025, 12:44 PM
For SAE J518 split flange fittings and adapters in dash size -16, this is the matching split flange O-ring size. The dimensions called out are 1.296 inch ID, 1.574 inch OD, with a 0.139 inch width.

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