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Technical Data Sheet
PartsTable / O-RING / 4123354
4123354 ✓ 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. Key specifications include material: RUBBER SILICONE CLASS Q, center_hole_diameter: 18.000 INCHES NOMINAL IN, cross-sectional_height: 0.300 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-563-6704, 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
4123354
NSN: 5331-01-563-6704
FSC: 5331 — O-RING
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
center_hole_diameter18.000 INCHES NOMINAL IN
cross-sectional_height0.300 INCHES NOMINAL IN
NSN5331-01-563-6704
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4123354 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 HEIGHT: 0.300 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 18.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE CLASS Q
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.300 INCHES NOMINAL IN
CENTER HOLE DIAMETER18.000 INCHES NOMINAL IN
MATERIALRUBBER SILICONE CLASS Q
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
827487Interchangeable
interchangeable cross-reference
interchangeable
706883Interchangeable
interchangeable cross-reference
interchangeable
307771Interchangeable
interchangeable cross-reference
interchangeable
32-178Interchangeable
interchangeable cross-reference
interchangeable
5028A1318Interchangeable
interchangeable cross-reference
interchangeable
5242-867Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4123354?
4123354 is a O-RING.
What parts can replace 4123354?
There are 8 known substitutes for 4123354: 827487, 706883, 307771 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4123354?
4123354 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-563-6704. 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