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Technical Data Sheet
PartsTable / O-RING / C498ITEM3
C498ITEM3 ✓ 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 SYNTHETIC, cross-sectional_height: 0.250 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 5331-00-292-0639, 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
C498ITEM3
NSN: 5331-00-292-0639
FSC: 5331 — O-RING
CAGE: 51228 — ECOLAIRE INC BALDWIN-HAMILTON CO DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
cross-sectional_height0.250 INCHES NOMINAL IN
NSN5331-00-292-0639
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C498ITEM3 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
•
MATERIAL: RUBBER SYNTHETIC
•
CROSS-SECTIONAL HEIGHT: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
CROSS-SECTIONAL HEIGHT0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MILP5516CLASSBInterchangeable
interchangeable cross-reference
interchangeable
MIL-P-25732Interchangeable
interchangeable cross-reference
interchangeable
223227Interchangeable
interchangeable cross-reference
interchangeable
PD5330-221-7Interchangeable
interchangeable cross-reference
interchangeable
563-6700-932147ALTPC12Interchangeable
interchangeable cross-reference
interchangeable
BK63Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C498ITEM3?
C498ITEM3 is a O-RING.
What parts can replace C498ITEM3?
There are 20 known substitutes for C498ITEM3: MILP5516CLASSB, MIL-P-25732, 223227 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C498ITEM3?
C498ITEM3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-292-0639. 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