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Technical Data Sheet
PartsTable / COMPONENT / 4F6888
4F6888 ✓ 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, case_style: SQUARE, seal_width: 0.500 INCHES NOMINAL IN, housing_bore_diameter: 3.481 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 2.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-171-7886, 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
4F6888
NSN: 5330-00-171-7886
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width0.500 INCHES NOMINAL IN
housing_bore_diameter3.481 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-171-7886
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4F6888 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
•
MATERIAL: STEEL CASE
•
SEALING ELEMENT STYLE: ANGULAR
•
SEAL WIDTH: 0.500 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 2.625 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.481 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.500 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER2.625 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT
HOUSING BORE DIAMETER3.481 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
504 1-2Interchangeable
interchangeable cross-reference
interchangeable
12Z330PC30Interchangeable
interchangeable cross-reference
interchangeable
B3-4Interchangeable
interchangeable cross-reference
interchangeable
12NBK1830YP2CInterchangeable
interchangeable cross-reference
interchangeable
12NBK1830YZP2CInterchangeable
interchangeable cross-reference
interchangeable
14464-12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4F6888?
4F6888 is a SEAL,PLAIN ENCASED.
What parts can replace 4F6888?
There are 16 known substitutes for 4F6888: 504 1-2, 12Z330PC30, B3-4 and 13 more. Substitute compatibility should be verified for your specific system.
Is 4F6888 still available?
4F6888 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026