8678010 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

8678010: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 13.0 OUNCES OZ, diameter: 3.135 INCHES NOMINAL IN, material: ALUMINUM ALLOY, oversize: 0.010 INCHES NOMINAL IN, head_style: FLAT, oil_groove: INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-622-8637, 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

8678010

NSN: 2805-00-622-8637
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

weight	13.0 OUNCES OZ
diameter	3.135 INCHES NOMINAL IN
material	ALUMINUM ALLOY
oversize	0.010 INCHES NOMINAL IN
head_style	FLAT
oil_groove	INCLUDED
skirt_type	SOLID
carbon_groove	NOT INCLUDED
overall_height	3.732 INCHES NOMINAL IN
surface_finish	FINISHED
oil_passage_type	HOLE LOCATION NOT OTHERWISE SPECIFIED
pin_hole_bushing	NOT INCLUDED
NSN	2805-00-622-8637

COMPONENT DIAGRAM

KEY FEATURES

•

CARBON GROOVE: NOT INCLUDED

•

RING GROOVE WIDTH: 0.1875 INCHES NOMINAL FOURTH RING IN

•

DISTANCE BETWEEN PIN BOSSES: 1.125 INCHES NOMINAL IN

•

RETAINING RING GROOVE: NOT INCLUDED

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	3.732 INCHES NOMINAL IN
CARBON GROOVE	NOT INCLUDED
RING GROOVE WIDTH	0.1875 INCHES NOMINAL FOURTH RING IN
RING GROOVE WIDTH	0.0625 INCHES NOMINAL FIRST RING IN
RING GROOVE WIDTH	0.0980 INCHES NOMINAL SECOND RING IN
RING GROOVE WIDTH	0.0980 INCHES NOMINAL THIRD RING IN
DISTANCE BETWEEN PIN BOSSES	1.125 INCHES NOMINAL IN
RETAINING RING GROOVE	NOT INCLUDED
SURFACE FINISH	FINISHED
SKIRT SLOT STYLE	HANGMAN SLOT

SUBSTITUTES & CROSS-REFERENCES 1

801537Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 8678010?

8678010 is a PISTON,INTERNAL COMBUSTION ENGIN.

What parts can replace 8678010?

There is 1 known substitute for 8678010: 801537. Substitute compatibility should be verified for your specific system.

What is the NSN for 8678010?

8678010 is cataloged in the U.S. Government catalog under NSN 2805-00-622-8637. This indicates validated use in U.S. government and defense supply chains.

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8678010 — PISTON,INTERNAL COMBUSTION ENGIN

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