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Technical Data Sheet
PartsTable / O-RING / S1E10203 ITEM 39
S1E10203 ITEM 39 ✓ 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 O-RING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-005-0509, 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
S1E10203 ITEM 39
NSN: 5331-01-005-0509
FSC: 5331 — O-RING
CAGE: 99517 — VACCO INDUSTRIES (USA)
SPECIFICATIONS
Part NumberS1E10203 ITEM 39
NSN5331-01-005-0509
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S1E10203 ITEM 39 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 12
MS9388-137Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-137Interchangeable
interchangeable cross-reference
interchangeable
M83248-1-137Interchangeable
interchangeable cross-reference
interchangeable
AS3209-137 CPInterchangeable
interchangeable cross-reference
interchangeable
AS3085-137Interchangeable
interchangeable cross-reference
interchangeable
2-137 V747-75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1E10203 ITEM 39?
S1E10203 ITEM 39 is a O-RING.
What parts can replace S1E10203 ITEM 39?
There are 12 known substitutes for S1E10203 ITEM 39: MS9388-137, M83248/1-137, M83248-1-137 and 9 more. Substitute compatibility should be verified for your specific system.
Is S1E10203 ITEM 39 still available?
S1E10203 ITEM 39 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