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Technical Data Sheet
PartsTable / O-RING / 4-2604-45A
4-2604-45A ✓ 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 center_hole_diameter: 1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM 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 5331-01-486-1727, 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
4-2604-45A
NSN: 5331-01-486-1727
FSC: 5331 — O-RING
CAGE: F0553 — SAFRAN AEROSYSTEMS EX SAFRAN AEROTECHNICS PLAISIR (FRA)
SPECIFICATIONS
center_hole_diameter1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-01-486-1727
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4-2604-45A 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.841 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2-225 S613-60Interchangeable
interchangeable cross-reference
interchangeable
AS568-225Interchangeable
interchangeable cross-reference
interchangeable
568-225Interchangeable
interchangeable cross-reference
interchangeable
19134-3-14Interchangeable
interchangeable cross-reference
interchangeable
ASTM D2000Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-22050Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-2604-45A?
4-2604-45A is a O-RING.
What parts can replace 4-2604-45A?
There are 12 known substitutes for 4-2604-45A: 2-225 S613-60, AS568-225, 568-225 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-2604-45A?
4-2604-45A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-486-1727. 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