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3R3789 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, outside_diameter: 0.624 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.507 INCHES NOMINAL IN, cross-sectional_thickness: 0.095 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-087-8924, 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
3R3789
NSN: 5330-00-087-8924
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
outside_diameter0.624 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.507 INCHES NOMINAL IN
cross-sectional_thickness0.095 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-087-8924
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3R3789 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
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 0.507 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.095 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
OUTSIDE DIAMETER: 0.624 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER0.507 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.095 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
OUTSIDE DIAMETER0.624 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
60-280Interchangeable
interchangeable cross-reference
interchangeable
D38501ALT7ITEM17Interchangeable
interchangeable cross-reference
interchangeable
60317Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
K41A11T3511Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3R3789?
3R3789 is a GASKET.
What parts can replace 3R3789?
There are 7 known substitutes for 3R3789: 60-280, D38501ALT7ITEM17, 60317 and 4 more. Substitute compatibility should be verified for your specific system.
Is 3R3789 still available?
3R3789 is currently cancelled.
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Last verified: July 2026