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Technical Data Sheet
645057A3B ✓ 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 PLUG ASSEMBLY,SEALING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-570-3600, 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
645057A3B
NSN: 5340-00-570-3600
FSC: 5340
CAGE: 99551 — GOODRICH CORPORATION DBA GOODRICH CORP (USA)
SPECIFICATIONS
Part Number645057A3B
NSN5340-00-570-3600
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 645057A3B 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 30
21C2200-068Upgraded Successor
successor cross-reference
successor
2162200-068Upgraded Successor
successor cross-reference
successor
283999-1Upgraded Successor
successor cross-reference
successor
281001Upgraded Successor
successor cross-reference
successor
28-001Upgraded Successor
successor cross-reference
successor
953518-21Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 645057A3B?
645057A3B is a PLUG ASSEMBLY,SEALING.
What parts can replace 645057A3B?
There are 30 known substitutes for 645057A3B: 21C2200-068, 2162200-068, 283999-1 and 27 more. Substitute compatibility should be verified for your specific system.
Is 645057A3B still available?
645057A3B is currently cancelled.
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