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Technical Data Sheet
PartsTable / O-RING / AS3209-020
AS3209-020 ✓ 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 PACKING,PREFORMED,A is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN, center_hole_diameter: 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1001, 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
AS3209-020
NSN: 5331-00-166-1001
FSC: 5331 — O-RING
CAGE: A0126 — LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE (ITA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN
center_hole_diameter0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-166-1001
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3209-020 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
•
OUTSIDE DIAMETER: 0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
ELONGATION PERCENTAGE125 MAXIMUM
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
5331PL2174759Interchangeable
interchangeable cross-reference
interchangeable
N2320Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-020Interchangeable
interchangeable cross-reference
interchangeable
04052333005791Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-017Interchangeable
interchangeable cross-reference
interchangeable
ARP568-017MILR2 5897 CL1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3209-020?
AS3209-020 is a PACKING,PREFORMED,A.
What parts can replace AS3209-020?
There are 32 known substitutes for AS3209-020: 5331PL2174759, N2320, M83248/1-020 and 29 more. Substitute compatibility should be verified for your specific system.
Is AS3209-020 still available?
AS3209-020 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