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Technical Data Sheet
PartsTable / COMPONENT / 5S4408
5S4408 ✓ 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: RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.469 INCHES NOMINAL IN, temp_rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, special_features: WITH PROTECTIVE INNER CASE, housing_bore_diameter: 3.876 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-194-3681, 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
5S4408
NSN: 5330-00-194-3681
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.469 INCHES NOMINAL IN
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
special_featuresWITH PROTECTIVE INNER CASE
housing_bore_diameter3.876 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-194-3681
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5S4408 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
•
SEAL WIDTH: 0.469 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEALING ELEMENT STYLE: ANGULAR
•
ACCOMMODATED SHAFT DIAMETER: 2.625 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.876 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.469 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SPECIAL FEATURESWITH PROTECTIVE INNER CASE
MATERIALSTEEL CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT DIAMETER2.625 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.876 INCHES NOMINAL IN
TEMP RATING-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
263-3301Interchangeable
interchangeable cross-reference
interchangeable
1223-526Interchangeable
interchangeable cross-reference
interchangeable
60101Interchangeable
interchangeable cross-reference
interchangeable
B238Interchangeable
interchangeable cross-reference
interchangeable
M31Interchangeable
interchangeable cross-reference
interchangeable
7036150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5S4408?
5S4408 is a SEAL,PLAIN ENCASED.
What parts can replace 5S4408?
There are 19 known substitutes for 5S4408: 263-3301, 1223-526, 60101 and 16 more. Substitute compatibility should be verified for your specific system.
Is 5S4408 still available?
5S4408 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