PartsTable
Technical Data Sheet
618443-9 ✓ 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 product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-026-6862, 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
618443-9
NSN: 5331-01-026-6862
FSC: 5331 — O-RING
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
Part Number618443-9
NSN5331-01-026-6862
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 618443-9 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 15
01006Interchangeable
interchangeable cross-reference
interchangeable
1Interchangeable
R970
interchangeable
1WITHPEDESTALInterchangeable
interchangeable cross-reference
interchangeable
33-157Interchangeable
interchangeable cross-reference
interchangeable
103-11Interchangeable
interchangeable cross-reference
interchangeable
8331354Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 618443-9?
618443-9 is a O-RING.
What parts can replace 618443-9?
There are 15 known substitutes for 618443-9: 01006, 1, 1WITHPEDESTAL and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 618443-9?
618443-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-026-6862. This indicates validated use in U.S. government and defense supply chains.
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