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AA90AS3 — ENGINE BLOCK ASSEMBLY,GASOLINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

AA90AS3: ENGINE BLOCK ASSEMBLY,GASOLINE.

The ENGINE BLOCK ASSEMBLY,GASOLINE is a the manufacturer industrial component. Key specifications include flywheel: NOT INCLUDED, bore_diameter: 3.500 INCHES NOMINAL IN, stroke_length: 4.000 INCHES NOMINAL IN, cooling_method: AIR, cylinder_arrangement: SINGLE V-TYPE, supercharger_usage_feature: NOT PROVIDED. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-395-4772, 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
AA90AS3
NSN: 2805-00-395-4772
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
flywheelNOT INCLUDED
bore_diameter3.500 INCHES NOMINAL IN
stroke_length4.000 INCHES NOMINAL IN
cooling_methodAIR
cylinder_quantity4
strokes_per_cycle4
cylinder_arrangementSINGLE V-TYPE
supercharger_usage_featureNOT PROVIDED
crankshaft_rotation_directionCLOCKWISE
brake_horsepower_at_specified_rpm23.5 HORSEPOWER AT 1400 RPM RPM
NSN2805-00-395-4772
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ENGINE BLOCK ASSEMBLY,GASOLINE TITLE COMPONENT PN AA90AS3 MFR ENGINE BLOCK ASSEMBLY,
KEY FEATURES
•
STROKES PER CYCLE: 4
•
STROKE LENGTH: 4.000 INCHES NOMINAL IN
•
FLYWHEEL: NOT INCLUDED
•
COOLING METHOD: AIR
•
CRANKSHAFT ROTATION DIRECTION: CLOCKWISE
•
CYLINDER QUANTITY: 4
•
CYLINDER ARRANGEMENT: SINGLE V-TYPE
•
SUPERCHARGER USAGE FEATURE: NOT PROVIDED
TECHNICAL CHARACTERISTICS
STROKES PER CYCLE4
STROKE LENGTH4.000 INCHES NOMINAL IN
FLYWHEELNOT INCLUDED
COOLING METHODAIR
CRANKSHAFT ROTATION DIRECTIONCLOCKWISE
CYLINDER QUANTITY4
CYLINDER ARRANGEMENTSINGLE V-TYPE
SUPERCHARGER USAGE FEATURENOT PROVIDED
BRAKE HORSEPOWER AT SPECIFIED RPM23.5 HORSEPOWER AT 1400 RPM RPM
BORE DIAMETER3.500 INCHES NOMINAL IN
OTHER ITEMS IN FSC 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2805-00-000-4022 2805-00-001-0029 2805-00-001-3527 2805-00-001-3844 2805-00-001-3854 2805-00-001-6154 2805-00-001-6164 2805-00-001-6575
SUBSTITUTES & CROSS-REFERENCES 1
AA90A53Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AA90AS3?
AA90AS3 is a ENGINE BLOCK ASSEMBLY,GASOLINE.
What parts can replace AA90AS3?
There is 1 known substitute for AA90AS3: AA90A53. Substitute compatibility should be verified for your specific system.
What is the NSN for AA90AS3?
AA90AS3 is cataloged in the U.S. Government catalog under NSN 2805-00-395-4772. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.