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Technical Data Sheet
PartsTable / COMPONENT / 3778210
3778210 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-585-1591, 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
3778210
NSN: 5330-00-585-1591
FSC: 5330
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
Part Number3778210
NSN5330-00-585-1591
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3778210 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
101526Interchangeable
interchangeable cross-reference
interchangeable
C-3397Interchangeable
interchangeable cross-reference
interchangeable
36865-4MLR2Interchangeable
interchangeable cross-reference
interchangeable
SM-C-632921Interchangeable
interchangeable cross-reference
interchangeable
1015V7Interchangeable
interchangeable cross-reference
interchangeable
1201Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3778210?
3778210 is a GASKET.
What parts can replace 3778210?
There are 21 known substitutes for 3778210: 101526, C-3397, 36865-4MLR2 and 18 more. Substitute compatibility should be verified for your specific system.
Is 3778210 still available?
3778210 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