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Technical Data Sheet
PartsTable / O-RING / A6689-139-222
A6689-139-222 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER POLYISOPRENE NATURAL CLASS NR, center_hole_diameter: 1.478 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-111-7407, 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
A6689-139-222
NSN: 5331-00-111-7407
FSC: 5331 — O-RING
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialRUBBER POLYISOPRENE NATURAL CLASS NR
center_hole_diameter1.478 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-111-7407
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6689-139-222 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
•
MATERIAL: RUBBER POLYISOPRENE NATURAL CLASS NR
•
CENTER HOLE DIAMETER: 1.478 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER POLYISOPRENE NATURAL CLASS NR
CENTER HOLE DIAMETER1.478 INCHES MINIMUM AND 1.490 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
AS568-902Interchangeable
interchangeable cross-reference
interchangeable
877-50Interchangeable
interchangeable cross-reference
interchangeable
MS3393-2Interchangeable
interchangeable cross-reference
interchangeable
99-1103-5-D1-S1 PC25Interchangeable
interchangeable cross-reference
interchangeable
ARP568-139E540- 8Interchangeable
interchangeable cross-reference
interchangeable
A6689.139.222Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6689-139-222?
A6689-139-222 is a O-RING.
What parts can replace A6689-139-222?
There are 33 known substitutes for A6689-139-222: AS568-902, 877-50, MS3393-2 and 30 more. Substitute compatibility should be verified for your specific system.
Is A6689-139-222 still available?
A6689-139-222 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