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HomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings7Y-0640: 576.48mm Inside Diameter Seal-O-Ring
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Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings7Y-0640: 576.48mm Inside Diameter Seal-O-Ring
7Y-0640: 576.48mm Inside Diameter Seal-O-Ring

O-ring

Brand: Cat

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7Y-0640: 576.48mm Inside Diameter Seal-O-Ring
7Y-0640: 576.48mm Inside Diameter Seal-O-Ring
7Y-0640: 576.48mm Inside Diameter Seal-O-Ring
7Y-0640: 576.48mm Inside Diameter Seal-O-Ring
7Y-0640: 576.48mm Inside Diameter Seal-O-Ring

O-ring

Brand: Cat

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Description
Description

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.

Applications:
O-Rings are used in many static and dynamic joints throughout Cat machines and engines.

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.

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.

Applications:
O-Rings are used in many static and dynamic joints throughout Cat machines and engines.

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
Specifications
Units of MeasureUSMetric
Cross Section Diameter (mm): 3.53
Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.139
Inside Diameter (mm): 576.48
Inside Diameter (in): 22.696
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
Units of MeasureUSMetric
Cross Section Diameter (mm): 3.53
Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.139
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Compatible Models
Compatible Models
Off-Highway Truck
D10R
Truck
775G775F773G773F773G LRC775G OEM775G LRC773G OEM777G777F
Front Shovel
5080385C5090B
Excavator
375-A390D390F385C L365B II390D L365C L390F L395MH3295375-A L3101385C FS385C L MH365C385B385C365B
Off Highway Truck
777G777
Material Handler
MH3295
Mobile Hyd Power Unit
385C390F385C L
View More
Off-Highway Truck
D10R
Warranty Information
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Parts diagram for 7Y-0640
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DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 7Y-0640
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 7Y-0640

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.

Applications:
O-Rings are used in many static and dynamic joints throughout Cat machines and engines.

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 7Y-0640

Units of Measure

USMetric
Cross Section Diameter (mm): 3.53
Material: NBR - Nitrile,NBR (75),Nitrile (NBR),Nitrile / NBR / HNBR / XNBR Rubber
Cross Section Diameter (in): 0.139
Inside Diameter (mm): 576.48
Inside Diameter (in): 22.696
Polymer: NBR (Nitrile butadiene)
Material Hardness: 75A
View More
Compatible Models for part number 7Y-0640

OFF-HIGHWAY TRUCK

D10R

TRUCK

775G 775F 773G 773F 773G LRC 775G OEM 775G LRC 773G OEM 777G 777F

FRONT SHOVEL

5080 385C 5090B

EXCAVATOR

375-A 390D 390F 385C L 365B II 390D L 365C L 390F L 395 MH3295 375-A L 3101 385C FS 385C L MH 365C 385B 385C 365B

OFF HIGHWAY TRUCK

777G 777

MATERIAL HANDLER

MH3295

MOBILE HYD POWER UNIT

385C 390F 385C L

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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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