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Technical Data Sheet
509686 ✓ 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 ENCASED 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 5330-00-306-1995, 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
509686
NSN: 5330-00-306-1995
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
Part Number509686
NSN5330-00-306-1995
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 509686 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 7
23-820Interchangeable
interchangeable cross-reference
interchangeable
K864642-7Interchangeable
interchangeable cross-reference
interchangeable
7001Interchangeable
interchangeable cross-reference
interchangeable
212-23820-W0Interchangeable
interchangeable cross-reference
interchangeable
5016.03Interchangeable
interchangeable cross-reference
interchangeable
23820.1000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 509686?
509686 is a SEAL,PLAIN ENCASED.
What parts can replace 509686?
There are 7 known substitutes for 509686: 23-820, K864642-7, 7001 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 509686?
509686 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-306-1995. This indicates validated use in U.S. government and defense supply chains.
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