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Technical Data Sheet
PartsTable / O-RING / A6689.902.366
A6689.902.366 ✓ 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 A6689.902.366 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 5331-01-266-2505, 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
A6689.902.366
NSN: 5331-01-266-2505
FSC: 5331 — O-RING
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
Part NumberA6689.902.366
NSN5331-01-266-2505
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6689.902.366 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
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.064 INCHES NOMINAL IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.064 INCHES NOMINAL IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
3-902-V709-90Interchangeable
interchangeable cross-reference
interchangeable
20235 FIND 32Interchangeable
interchangeable cross-reference
interchangeable
LL-HX5-4665Interchangeable
interchangeable cross-reference
interchangeable
20368PC30Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-902Interchangeable
interchangeable cross-reference
interchangeable
A6689.902.366Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6689.902.366?
A6689.902.366 is a A6689.902.366.
What parts can replace A6689.902.366?
There are 8 known substitutes for A6689.902.366: 3-902-V709-90, 20235 FIND 32, LL-HX5-4665 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A6689.902.366?
A6689.902.366 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-266-2505. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026