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BackHomeHardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings9F-1399: 171.04mm Inner Diameter Seal O Ring
BackHome
Hardware, Seals, & ConsumablesSeals, Gaskets, & O-RingsO-Rings
9F-1399: 171.04mm Inner Diameter Seal O Ring
9F-1399: 171.04mm Inner Diameter Seal O Ring
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9F-1399: 171.04mm Inner Diameter Seal O Ring
9F-1399: 171.04mm Inner Diameter Seal O Ring
9F-1399: 171.04mm Inner Diameter Seal O Ring
9F-1399: 171.04mm Inner Diameter Seal O Ring
9F-1399: 171.04mm Inner Diameter Seal O Ring

O-ring

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 9F-1399
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Description for part number 9F-1399

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.

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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 9F-1399

Units of Measure

USMetric

Cross Section Diameter (mm): 3.53

Cross Section Diameter (in): 0.139

Inside Diameter (mm): 171.04

Inside Diameter (in): 6.734

SAE AS568 Dash Size: -261

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: 261

Seal/O-Ring Type: Standard

Primary Sealing Material: Rubber

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Compatible Models for part number 9F-1399

UNDERGROUND ART TRUCK

AE40 AD30 AE40 II AD45 AD40

INTEGRATED TOOLCARRIER

IT18B IT14G

LOAD HAUL DUMP

R1700 II R1600 R1700G R1300

MOTOR GRADER

120H 120 16G 14G

WINCH

528

BACKHOE

931 D3

TRACK-TYPE TRACTOR

D5 D10 D6R II D3B D4G D6N

WHEEL SKIDDER

535C 525 518 515 528

MINI HYD EXCAVATOR

302.5

PIPELAYER

572G 583K 583H

STABILIZER MIXER

SM-350

MINING EXCAVATOR

5130

EXCAVATOR

312D2 GC 318E L 336F 315D L 235 318D2 L 319D LN 318D2 319D L 318D L 316E L 313D

RIPPER SCARIFIER

16G

WHEEL TRACTOR

613 627H

RECLAIMER MIXER

RM-350B RM-500 RM-350

HYDRAULIC CONTROL

128 129

TRACK LOADER

977H 977K

PETROLEUM TRANSMISSION

TH55FT-E90

SOIL COMPACTOR

825B

COLD PLANER

PR-1000C PR-1000

WHEEL DOZER

834 824B 834B 824C 824

LANDFILL COMPACTOR

826B 826K

COMPACT WHEEL LOADER

914G 908

WHEEL LOADER

980 XE 966F II 960F 950B/950E 980 950B 950E 950G 962G 950F 988 992 916 936E 988B G916 980B 992B 980C 980F 980H 980G 936 966D 966F 966E G936 970F 950 982 XE 950F II

ARTICULATED TRUCK

D250B D35HP D35C D300B D300E II

RIPPER

10

ROTARY/TRACK DRILLS

MD6540 MD6640

TRUCK

793F OEM 69D 769 769B 769D 769C

WHEEL SCRAPER

627 633 627G 639D 627B 627E 633B 633D

QUARRY TRUCK

771D 771C

BULLDOZER

10C 10S 10U 824S 9C 3S

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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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