PartsTable
Technical Data Sheet
PartsTable / O-RING / A6689.212.303
A6689.212.303 ✓ 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 A6689.212.303 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-984-3756, 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
A6689.212.303
NSN: 5331-00-984-3756
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberA6689.212.303
NSN5331-00-984-3756
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6689.212.303 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
•
ELONGATION PERCENTAGE: 331 MAXIMUM
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.119 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
•
TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
ELONGATION PERCENTAGE331 MAXIMUM
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.119 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
TEMP RATING-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
31101-7551-19Interchangeable
interchangeable cross-reference
interchangeable
80200Interchangeable
interchangeable cross-reference
interchangeable
31101Interchangeable
interchangeable cross-reference
interchangeable
ARP568-212ZZR76 5GR70Interchangeable
interchangeable cross-reference
interchangeable
AS568-212Interchangeable
interchangeable cross-reference
interchangeable
AA55801-212D7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6689.212.303?
A6689.212.303 is a A6689.212.303.
What parts can replace A6689.212.303?
There are 28 known substitutes for A6689.212.303: 31101-7551-19, 80200, 31101 and 25 more. Substitute compatibility should be verified for your specific system.
Is A6689.212.303 still available?
A6689.212.303 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026