97A81 — ENGINE BLOCK ASSEMBLY,GASOLINE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

97A81: ENGINE BLOCK ASSEMBLY,GASOLINE.

The ENGINE BLOCK ASSEMBLY,GASOLINE is a the manufacturer industrial component. Key specifications include flywheel: NOT INCLUDED, bore_diameter: 2.750 INCHES NOMINAL IN, stroke_length: 5.000 INCHES NOMINAL IN, cooling_method: AIR, flywheel_housing: NOT INCLUDED, cylinder_arrangement: VERTICAL SINGLE CYLINDER. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-491-3264, 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

97A81

NSN: 2805-00-491-3264
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)

SPECIFICATIONS

flywheel	NOT INCLUDED
bore_diameter	2.750 INCHES NOMINAL IN
stroke_length	5.000 INCHES NOMINAL IN
cooling_method	AIR
flywheel_housing	NOT INCLUDED
cylinder_quantity	1
strokes_per_cycle	4
cylinder_arrangement	VERTICAL SINGLE CYLINDER
supercharger_usage_feature	NOT PROVIDED
crankshaft_rotation_direction	CLOCKWISE
direct_raw_water_cooling_feature	NOT INCLUDED
closed_system_hull_cooling_feature	NOT INCLUDED
NSN	2805-00-491-3264

COMPONENT DIAGRAM

KEY FEATURES

•

STROKES PER CYCLE: 4

•

CLOSED SYSTEM HULL COOLING FEATURE: NOT INCLUDED

•

STROKE LENGTH: 5.000 INCHES NOMINAL IN

•

FLYWHEEL: NOT INCLUDED

•

COOLING METHOD: AIR

•

VALVE ARRANGEMENT FOR WHICH DESIGNED: L

•

CRANKSHAFT ROTATION DIRECTION: CLOCKWISE

•

DIRECT RAW WATER COOLING FEATURE: NOT INCLUDED

TECHNICAL CHARACTERISTICS

STROKES PER CYCLE	4
CLOSED SYSTEM HULL COOLING FEATURE	NOT INCLUDED
STROKE LENGTH	5.000 INCHES NOMINAL IN
FLYWHEEL	NOT INCLUDED
COOLING METHOD	AIR
VALVE ARRANGEMENT FOR WHICH DESIGNED	L
CRANKSHAFT ROTATION DIRECTION	CLOCKWISE
DIRECT RAW WATER COOLING FEATURE	NOT INCLUDED
CYLINDER QUANTITY	1
CYLINDER ARRANGEMENT	VERTICAL SINGLE CYLINDER

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.

2805-00-010-2959 2805-00-066-3426 2805-00-326-0797 2805-00-395-7778 2805-00-422-9321 2805-00-447-9114 2805-00-448-0786 2805-00-561-9463

SUBSTITUTES & CROSS-REFERENCES 1

AA97S1Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 97A81?

97A81 is a ENGINE BLOCK ASSEMBLY,GASOLINE.

What parts can replace 97A81?

There is 1 known substitute for 97A81: AA97S1. Substitute compatibility should be verified for your specific system.

What is the NSN for 97A81?

97A81 is cataloged in the U.S. Government catalog under NSN 2805-00-491-3264. This indicates validated use in U.S. government and defense supply chains.

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97A81 — ENGINE BLOCK ASSEMBLY,GASOLINE

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