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Technical Data Sheet
PartsTable / COMPONENT / C1TT4478A
C1TT4478A ✓ Verified by PartsTable
— · 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 the manufacturer industrial component. Key specifications include material: LEATHER SEALING ELEMENT B, case_style: RECESSED, seal_width: 0.640 INCHES NOMINAL IN, housing_bore_diameter: 3.550 INCHES NOMINAL IN, sealing_element_style: VERTICAL-ANGULAR, accommodated_shaft_diameter: 2.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-018-2233, 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
C1TT4478A
NSN: 5330-00-018-2233
FSC: 5330
CAGE: 23040 — FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT B
case_styleRECESSED
seal_width0.640 INCHES NOMINAL IN
housing_bore_diameter3.550 INCHES NOMINAL IN
sealing_element_styleVERTICAL-ANGULAR
accommodated_shaft_diameter2.750 INCHES NOMINAL IN
NSN5330-00-018-2233
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C1TT4478A MFR: OEM ⚠ 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: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 2.750 INCHES NOMINAL IN
•
MATERIAL: LEATHER SEALING ELEMENT B
•
SEAL WIDTH: 0.640 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.550 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER2.750 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT B
SEAL WIDTH0.640 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.550 INCHES NOMINAL IN
MATERIALRUBBER SEALING ELEMENT A
SEALING ELEMENT STYLEVERTICAL-ANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
27297Interchangeable
interchangeable cross-reference
interchangeable
120 47/64Interchangeable
interchangeable cross-reference
interchangeable
46147Interchangeable
interchangeable cross-reference
interchangeable
510Interchangeable
interchangeable cross-reference
interchangeable
120 3/4Interchangeable
interchangeable cross-reference
interchangeable
2510 3/4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C1TT4478A?
C1TT4478A is a SEAL,PLAIN ENCASED.
What parts can replace C1TT4478A?
There are 20 known substitutes for C1TT4478A: 27297, 120 47/64, 46147 and 17 more. Substitute compatibility should be verified for your specific system.
Is C1TT4478A still available?
C1TT4478A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026