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BackHomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
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Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
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1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
1J-2890: 6.99 x 227.96mm 75A NBR O-Ring
1J-2890: 6.99 x 227.96mm 75A NBR O-Ring

Cat® NBR O-Ring, 8.975" ID x 9.525" OD

Brand: Cat

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Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

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Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

Need More Help? Contact Us

Find a DealerEmail
Warranty Information
Warranty Information

Generally, warranty for parts purchased on Parts.Cat.Com is 12 months from the invoice date as defined in the Caterpillar Limited Warranty. Parts Warranty covers defects in material and workmanship throughout the Warranty period once it has been installed. For complete Warranty detail contact your local Cat Dealer.

Need More Help? Contact Us

Find a DealerEmail
Return Policy
Return Policy Information
Unless otherwise noted by a non-returnable part
icon, most parts can be returned to your authorized Cat® dealer under their return policy.

Need More Help? Contact Us

Find a DealerEmail
Parts diagram for 1J-2890
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Description for part number 1J-2890

Description:
O-Rings are used in static sealing and some dynamic applications.

Attributes:
Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.

Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.

With over 2500 O-Rings in different sizes and materials, Cat O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.

Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.

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Warning:This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Specifications for part number 1J-2890

Units of Measure

USMetric

Cross Section Diameter (mm): 6.99

Cross Section Diameter (in): 0.275

Inside Diameter (mm): 227.96

Inside Diameter (in): 8.975

SAE AS568 Dash Size: -447

Material: NBR (75),NBR - Nitrile,Nitrile / NBR / HNBR / XNBR Rubber,Nitrile (NBR)

Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.

Notes: Dimensions and material descriptions provided for reference only.

Polymer: NBR (Nitrile butadiene)

Material Hardness: 75A

Dash Size: 447

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Compatible Models for part number 1J-2890

TRACK-TYPE TRACTOR

D11T D7H D8L D10

RIPPER

10

MARINE ENGINE

D353E D353C D353D

PIPELAYER

594H

TRUCK

793F OEM

BACKHOE LOADER

446B

EXCAVATOR

312C L 312C

BULLDOZER

8S 10C 10S 7S 10U 7SU 8A 7S LGP

VIBRATORY COMPACTOR

CS-431C CP-433C CS-433C CB-434B

WINCH

57 58

View More
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 1J-2890
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 1J-2890

Description:
O-Rings are used in static sealing and some dynamic applications.

Attributes:
Cat® O-Rings are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines and machines. The materials resist wear and extrusion, and provide superior resistance to seal compression set. In addition, certain Cat O-Rings are coated with PTFE to minimize seal twisting and cutting during seal installation.

Dimensions of our O-Rings are consistently held to tight tolerances to ensure they fit properly into seal grooves with the necessary seal compression.

With over 2500 O-Rings in different sizes and materials, Cat O-Rings are your best solution for your Cat and other mobile equipment O-Ring needs.

Cat Sealing systems protect more expensive parts from leaks and contamination. Protect your investment with Genuine Cat Seals.

View More
Warning:This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Specifications for part number 1J-2890

Units of Measure

USMetric

Cross Section Diameter (mm): 6.99

Cross Section Diameter (in): 0.275

Inside Diameter (mm): 227.96

Inside Diameter (in): 8.975

SAE AS568 Dash Size: -447

Material: NBR (75),NBR - Nitrile,Nitrile / NBR / HNBR / XNBR Rubber,Nitrile (NBR)

Material Description: Nitrile (NBR) rubber is capable of service temperatures of -40 to 100C and is resistant to fuel oils, gasoline, ultra low sulfur diesel fuel and lubricants. Nitrile rubber is not recommended for applications that require resistance to bio-diesel or coolant.

Notes: Dimensions and material descriptions provided for reference only.

Polymer: NBR (Nitrile butadiene)

Material Hardness: 75A

Dash Size: 447

View More
Compatible Models for part number 1J-2890

TRACK-TYPE TRACTOR

D11T D7H D8L D10

RIPPER

10

MARINE ENGINE

D353E D353C D353D

PIPELAYER

594H

TRUCK

793F OEM

BACKHOE LOADER

446B

EXCAVATOR

312C L 312C

BULLDOZER

8S 10C 10S 7S 10U 7SU 8A 7S LGP

VIBRATORY COMPACTOR

CS-431C CP-433C CS-433C CB-434B

WINCH

57 58

View More
KeyKey
Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced

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