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Technical Data Sheet
3418AS6427 ✓ 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

CAP,PROTECTIVE,DUST AND MOISTURE. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-461-1039, 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
3418AS6427
NSN: 5340-01-461-1039
FSC: 5340
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
Part Number3418AS6427
NSN5340-01-461-1039
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3418AS6427 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 12
30600Upgraded Successor
successor cross-reference
successor
B8Upgraded Successor
successor cross-reference
successor
PP-4606C/GUpgraded Successor
successor cross-reference
successor
3501236Upgraded Successor
successor cross-reference
successor
35012036Upgraded Successor
successor cross-reference
successor
30407Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3418AS6427?
3418AS6427 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 3418AS6427?
There are 12 known substitutes for 3418AS6427: 30600, B8, PP-4606C/G and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3418AS6427?
3418AS6427 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-461-1039. This indicates validated use in U.S. government and defense supply chains.
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