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BackHomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
BackHome
Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
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6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
6J-2680: 3.53 x 69.44mm 90A NBR O-Ring
6J-2680: 3.53 x 69.44mm 90A NBR O-Ring

CAT® O-Ring Seal for hydraulic pump line provides a reliable and leak-free connection

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.

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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.

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 6J-2680
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Description for part number 6J-2680

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 6J-2680

Units of Measure

USMetric

Cross Section Diameter (mm): 3.53

Cross Section Diameter (in): 0.139

Inside Diameter (mm): 69.44

Inside Diameter (in): 2.734

SAE AS568 Dash Size: -232

Material: NBR (90),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)

Applications: Ambient temperature fuel handling; High and low pressure LPG service; Hydraulic fluids (to 10,335 kPa/1,500 psi); Power steering seals; Radiator thermostat seals

Material Hardness: 90A

Not Compatible With: Automotive and aircraft brake fluids; High levels of ozone; Ketones; Phosphate ester fluids; Strong acids; UV light

Compatible With: Abrasion resistant; Alpha-Olefin base synthetic lubricants; Ethylene Glycol; Hydrocarbon fuels; Petroleum base lubricants; Silicone oils and greases; Water, water base engine coolants; ORFS, STORS seals

Temperature (°C): -40 - 100

Dash Size: 232

Temperature (°F): -40 - 212

Seal/O-Ring Type: Standard

View More
Compatible Models for part number 6J-2680

PUMPER

SCT673 SPS342 CPT372 SPT343 SPT342

GENERATOR

SR4 SR4BHV SR4B

UNDERGROUND ART TRUCK

AD55B AD60 AD55

INTEGRATED TOOLCARRIER

IT38G IT28G IT28F

WHEEL TRACTOR-SCRAPER

631K 627K LRC 623K LRC 623K 621K 627K 613G 637K 657 651

LOAD HAUL DUMP

R1700

LOAD, HAUL, DUMP

R1700K

OFF HIGHWAY TRUCK

777 777G 777E

MOTOR GRADER

18M3 16 14 18 16M 14M 24H 120 16M3

HYDRAULIC SHOVEL

6015

WHEEL SKIDDER

528 530B

TRACK-TYPE TRACTOR

D6T LGP D6XE D10 D6T LGPPAT D6T XW D6T XL D6T D7E D7H D6 D8 D8T D8R D8L D10T2 D9T D9R D6T XL PAT D6T XW PAT D6 XE D10T D11T D7R II D7E LGP

KNUCKLEBOOM LOADER

539

MINI HYD EXCAVATOR

310

MARINE AUXILIARY

3516B 3508B

MARINE ENGINE

3516 3512 3508 3616 3508B 3516B C280-16 3512B C280-6

PIPELAYER

572R II 572R 561H PL83 PL87 PL72

MINING EXCAVATOR

5230

FRONT SHOVEL

235C

EXCAVATOR

336E LN 311D LRR 320-A L 323F SA 320-A N 312C 336E 324D 324E 312D 313D2 GC 320D L 312-A 350-A 324E LN 321B 320E L 349F L 320D2 FM 325D L 315-A L 558 315C 330C L 374D L 312C L 568 FM 350-A L 320D FM 314C 538 324D L 350 L 336E L 325C 325D 313D 312D L 322B L 225 324D FM LL M325D MH 235 318D2 L 324E L 329E L 320-A 329E 315-A 320C 320D 320E 235B 235C 235D 325D MH 329E LN 375-A 245 245B 320 L M325D L MH M320

GENERATOR SET

3508B C32 3512B 3516C 3516B

WHEEL TRACTOR

651B 651E 613 621 631K 631E 641B 623B 657E 621B 657B 621K OEM 621R 621E 613C II 627B 637G 637E 613C 637K

RECLAIMER MIXER

RM-500

VEHICULAR ENGINE

3512

TRACK LOADER

973 973D 963C

PETROLEUM ENGINE

3508C 3512C 3512B

LOCOMOTIVE ENGINE

3516B 3508B

SOIL COMPACTOR

825H 825G 825K 825G II

EJECTOR TRUCK

740B 740

BACKHOE LOADER

414E 424B HD 424B 420 420D 444E 420F 430D 430F 416D

COLD PLANER

PR-750B

WHEEL DOZER

834G 834K 824H 824G 824G II 844H 844K

LANDFILL COMPACTOR

836H 836G 836K 826G 826H 826K

WHEEL LOADER

982XE 928G 972G 972H 972K 972M 972L 980 982 928HZ 962H 950H 962L 962K 950L 992 980G II 980XE 988G 988H 988K 966H 966G 930G 966L 966K 930H 930K 966M 982 XE 980 XE 924GZ 966K XE 924HZ 990K 990H 972M XE 993K 966M XE 924H 924G 992D 924K 992B 992C 980H 980K 928F 938G 938F 938K 938M 994K 966G II 982M

ENGINE - MACHINE

C4.4

GEN SET ENGINE

3516B 3512B 3508 C280-16 3508B 3516

CHALLENGER

55 MTC735 MTC745 MTC755 MTC765 35 45

ARTICULATED TRUCK

740B 740 735B 735

RIPPER

7

INDUSTRIAL ENGINE

3516B 3512B 3512 3508B

QUARRY TRUCK

775B 773E 771D

WHEEL SCRAPER

633 621E 633B 637K 639D

TRUCK

773G LRC 770G 795F XQ 793F 772G 69D 793F XQ 773E 773D 773G 797F 773F 773G OEM 785D 773B 793F CMD 775G 775F 793F OEM 775E 775D 795F AC 777G 777F 775G LRC 769D

TRACTOR

772B

BULLDOZER

7SU 7S LGP 8S 7S 8A

View More
DiagramDescriptionSpecificationsCompatible Models
Parts diagram for 6J-2680
View Detailed Parts Diagrams
Add Your Equipment
Description for part number 6J-2680

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 6J-2680

Units of Measure

USMetric

Cross Section Diameter (mm): 3.53

Cross Section Diameter (in): 0.139

Inside Diameter (mm): 69.44

Inside Diameter (in): 2.734

SAE AS568 Dash Size: -232

Material: NBR (90),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)

Applications: Ambient temperature fuel handling; High and low pressure LPG service; Hydraulic fluids (to 10,335 kPa/1,500 psi); Power steering seals; Radiator thermostat seals

Material Hardness: 90A

Not Compatible With: Automotive and aircraft brake fluids; High levels of ozone; Ketones; Phosphate ester fluids; Strong acids; UV light

Compatible With: Abrasion resistant; Alpha-Olefin base synthetic lubricants; Ethylene Glycol; Hydrocarbon fuels; Petroleum base lubricants; Silicone oils and greases; Water, water base engine coolants; ORFS, STORS seals

Temperature (°C): -40 - 100

Dash Size: 232

Temperature (°F): -40 - 212

Seal/O-Ring Type: Standard

View More
Compatible Models for part number 6J-2680

PUMPER

SCT673 SPS342 CPT372 SPT343 SPT342

GENERATOR

SR4 SR4BHV SR4B

UNDERGROUND ART TRUCK

AD55B AD60 AD55

INTEGRATED TOOLCARRIER

IT38G IT28G IT28F

WHEEL TRACTOR-SCRAPER

631K 627K LRC 623K LRC 623K 621K 627K 613G 637K 657 651

LOAD HAUL DUMP

R1700

LOAD, HAUL, DUMP

R1700K

OFF HIGHWAY TRUCK

777 777G 777E

MOTOR GRADER

18M3 16 14 18 16M 14M 24H 120 16M3

HYDRAULIC SHOVEL

6015

WHEEL SKIDDER

528 530B

TRACK-TYPE TRACTOR

D6T LGP D6XE D10 D6T LGPPAT D6T XW D6T XL D6T D7E D7H D6 D8 D8T D8R D8L D10T2 D9T D9R D6T XL PAT D6T XW PAT D6 XE D10T D11T D7R II D7E LGP

KNUCKLEBOOM LOADER

539

MINI HYD EXCAVATOR

310

MARINE AUXILIARY

3516B 3508B

MARINE ENGINE

3516 3512 3508 3616 3508B 3516B C280-16 3512B C280-6

PIPELAYER

572R II 572R 561H PL83 PL87 PL72

MINING EXCAVATOR

5230

FRONT SHOVEL

235C

EXCAVATOR

336E LN 311D LRR 320-A L 323F SA 320-A N 312C 336E 324D 324E 312D 313D2 GC 320D L 312-A 350-A 324E LN 321B 320E L 349F L 320D2 FM 325D L 315-A L 558 315C 330C L 374D L 312C L 568 FM 350-A L 320D FM 314C 538 324D L 350 L 336E L 325C 325D 313D 312D L 322B L 225 324D FM LL M325D MH 235 318D2 L 324E L 329E L 320-A 329E 315-A 320C 320D 320E 235B 235C 235D 325D MH 329E LN 375-A 245 245B 320 L M325D L MH M320

GENERATOR SET

3508B C32 3512B 3516C 3516B

WHEEL TRACTOR

651B 651E 613 621 631K 631E 641B 623B 657E 621B 657B 621K OEM 621R 621E 613C II 627B 637G 637E 613C 637K

RECLAIMER MIXER

RM-500

VEHICULAR ENGINE

3512

TRACK LOADER

973 973D 963C

PETROLEUM ENGINE

3508C 3512C 3512B

LOCOMOTIVE ENGINE

3516B 3508B

SOIL COMPACTOR

825H 825G 825K 825G II

EJECTOR TRUCK

740B 740

BACKHOE LOADER

414E 424B HD 424B 420 420D 444E 420F 430D 430F 416D

COLD PLANER

PR-750B

WHEEL DOZER

834G 834K 824H 824G 824G II 844H 844K

LANDFILL COMPACTOR

836H 836G 836K 826G 826H 826K

WHEEL LOADER

982XE 928G 972G 972H 972K 972M 972L 980 982 928HZ 962H 950H 962L 962K 950L 992 980G II 980XE 988G 988H 988K 966H 966G 930G 966L 966K 930H 930K 966M 982 XE 980 XE 924GZ 966K XE 924HZ 990K 990H 972M XE 993K 966M XE 924H 924G 992D 924K 992B 992C 980H 980K 928F 938G 938F 938K 938M 994K 966G II 982M

ENGINE - MACHINE

C4.4

GEN SET ENGINE

3516B 3512B 3508 C280-16 3508B 3516

CHALLENGER

55 MTC735 MTC745 MTC755 MTC765 35 45

ARTICULATED TRUCK

740B 740 735B 735

RIPPER

7

INDUSTRIAL ENGINE

3516B 3512B 3512 3508B

QUARRY TRUCK

775B 773E 771D

WHEEL SCRAPER

633 621E 633B 637K 639D

TRUCK

773G LRC 770G 795F XQ 793F 772G 69D 793F XQ 773E 773D 773G 797F 773F 773G OEM 785D 773B 793F CMD 775G 775F 793F OEM 775E 775D 795F AC 777G 777F 775G LRC 769D

TRACTOR

772B

BULLDOZER

7SU 7S LGP 8S 7S 8A

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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