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Technical Data Sheet
3938655 ✓ 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 end_item_identification: MEDIUM MINE PROTECTED VEHICLE - MMPV. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-379-8484, 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
3938655
NSN: 5330-01-379-8484
FSC: 5330
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
end_item_identificationMEDIUM MINE PROTECTED VEHICLE - MMPV
NSN5330-01-379-8484
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3938655 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMEDIUM MINE PROTECTED VEHICLE - MMPV
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
621Interchangeable
interchangeable cross-reference
interchangeable
621-15085Interchangeable
interchangeable cross-reference
interchangeable
391960-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3938655?
3938655 is a GASKET.
What parts can replace 3938655?
There are 3 known substitutes for 3938655: 621, 621-15085, 391960-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 3938655?
3938655 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-379-8484. This indicates validated use in U.S. government and defense supply chains.
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