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Technical Data Sheet
AS3209-238 ✓ 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 FLUOROCARBON CLASS FPM, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM, special_features: MUST CONFORM TO CLASS 1 TOLERANCES, center_hole_diameter: 3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, end_item_identification: AIRCRAFT ENGINE AE2100D3, KC130J. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-165-1956, 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
AS3209-238
NSN: 5331-00-165-1956
FSC: 5331 — O-RING
CAGE: 1K697 — DBR INDUSTRIES, INC. DBA DBR INDUSTRIES INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
special_featuresMUST CONFORM TO CLASS 1 TOLERANCES
center_hole_diameter3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identificationAIRCRAFT ENGINE AE2100D3, KC130J
criticality_code_justificationAGAV
material_document_and_classificationSAE AMS7276 ASSN STD SINGLE MATERIAL RESPONSE OR SAE AMS7280 ASSN STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agency(INAVY)PACKING,AIRCRAFT,MA
NSN5331-00-165-1956
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS3209-238 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: 3.730 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER: 3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
ELONGATION PERCENTAGE: 125 MAXIMUM
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TEMP RATING: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER3.730 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER3.460 INCHES MINIMUM AND 3.508 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
ELONGATION PERCENTAGE125 MAXIMUM
MATERIALRUBBER FLUOROCARBON CLASS FPM
TEMP RATING-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
7276Interchangeable
interchangeable cross-reference
interchangeable
309-10Interchangeable
interchangeable cross-reference
interchangeable
4000-6Interchangeable
interchangeable cross-reference
interchangeable
309A10Interchangeable
interchangeable cross-reference
interchangeable
292-6220Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-641 SZ1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS3209-238?
AS3209-238 is a O-RING.
What parts can replace AS3209-238?
There are 21 known substitutes for AS3209-238: 7276, 309-10, 4000-6 and 18 more. Substitute compatibility should be verified for your specific system.
Is AS3209-238 still available?
AS3209-238 is currently cancelled.
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