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Technical Data Sheet
620A1239 ✓ 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 SEAL,PLAIN 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 5330-01-393-1334, 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
620A1239
NSN: 5330-01-393-1334
FSC: 5330
CAGE: R2934 — BUKH A/S (DNK)
SPECIFICATIONS
Part Number620A1239
NSN5330-01-393-1334
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 620A1239 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 3
27086Interchangeable
interchangeable cross-reference
interchangeable
2650-27000Interchangeable
interchangeable cross-reference
interchangeable
2650-27000 ITEM 19Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 620A1239?
620A1239 is a SEAL,PLAIN.
What parts can replace 620A1239?
There are 3 known substitutes for 620A1239: 27086, 2650-27000, 2650-27000 ITEM 19. Substitute compatibility should be verified for your specific system.
What is the NSN for 620A1239?
620A1239 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-393-1334. This indicates validated use in U.S. government and defense supply chains.
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