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Technical Data Sheet
PartsTable / O-RING / LON-103A 10/2
LON-103A 10/2 ✓ 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 LON-103A 10/2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-315-3438, 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
LON-103A 10/2
NSN: 5331-01-315-3438
FSC: 5331 — O-RING
CAGE: 0JKF4 — ULSTEIN USA INC (USA)
SPECIFICATIONS
Part NumberLON-103A 10/2
NSN5331-01-315-3438
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: LON-103A 10/2 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 8
23378Interchangeable
interchangeable cross-reference
interchangeable
2723-41Interchangeable
interchangeable cross-reference
interchangeable
755002A7654-41Interchangeable
interchangeable cross-reference
interchangeable
72154Interchangeable
interchangeable cross-reference
interchangeable
50476Interchangeable
interchangeable cross-reference
interchangeable
L566/40-11Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LON-103A 10/2?
LON-103A 10/2 is a LON-103A 10/2.
What parts can replace LON-103A 10/2?
There are 8 known substitutes for LON-103A 10/2: 23378, 2723-41, 755002A7654-41 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LON-103A 10/2?
LON-103A 10/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-315-3438. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026