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Technical Data Sheet

T140 — Technical Data Sheet

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TOWMOTOR CORP DALLAS PLANT SUB OF CATERPILLAR TRACTOR CO · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SEAL,PLAIN ENCASED is a TOWMOTOR CORP DALLAS PLANT SUB OF CATERPILLAR TRACTOR CO industrial component. Key specifications include MATERIAL: LEATHER SEALING ELEMENT, CASE STYLE: SQUARE, SEAL WIDTH: 0.625 INCHES NOMINAL IN, HOUSING BORE DIAMETER: 4.501 INCHES NOMINAL IN, SEALING ELEMENT STYLE: ANGULAR, ACCOMMODATED SHAFT DIAMETER: 3.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-179-0972, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
T140
NSN: 5330-00-179-0972
FSC: 5330
CAGE: 73782 — TOWMOTOR CORP DALLAS PLANT SUB OF CATERPILLAR TRACTOR CO (USA)
SPECIFICATIONS
MATERIALLEATHER SEALING ELEMENT
CASE STYLESQUARE
SEAL WIDTH0.625 INCHES NOMINAL IN
HOUSING BORE DIAMETER4.501 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT DIAMETER3.500 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
NSN5330-00-179-0972
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: T140 MFR: TOWMOTOR CORP DALLAS PLANT SUB OF CATERPILLAR TRACTOR CO ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CASE STYLE: SQUARE
•
MATERIAL: STEEL CASE
•
SEAL WIDTH: 0.625 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 3.500 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
HOUSING BORE DIAMETER: 4.501 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLESQUARE
MATERIALSTEEL CASE
SEAL WIDTH0.625 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER3.500 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER4.501 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
4503-16Interchangeable
interchangeable cross-reference
interchangeable
L8Interchangeable
interchangeable cross-reference
interchangeable
L-8-2558Interchangeable
interchangeable cross-reference
interchangeable
6522A18Interchangeable
interchangeable cross-reference
interchangeable
5947Interchangeable
interchangeable cross-reference
interchangeable
059477Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T140?
T140 is a SEAL,PLAIN ENCASED manufactured by TOWMOTOR CORP DALLAS PLANT SUB OF CATERPILLAR TRACTOR CO.
What parts can replace T140?
There are 21 known substitutes for T140: 4503-16, L8, L-8-2558 and 18 more. Substitute compatibility should be verified for your specific system.
Is T140 still available?
T140 is currently cancelled.
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