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7320455 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

7320455: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 122.0 OUNCES OZ, diameter: 4.000 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, cut_depth: 0.400 INCHES NOMINAL IN, head_style: DOME, oil_groove: NOT INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 2815-00-248-3787, 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
7320455
NSN: 2815-00-248-3787
FSC: 2815 — Diesel Engines and Components
CAGE: 26759 — MELLEY INDUSTRIES INC (USA)
SPECIFICATIONS
weight122.0 OUNCES OZ
diameter4.000 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
cut_depth0.400 INCHES NOMINAL IN
head_styleDOME
oil_grooveNOT INCLUDED
skirt_typeSOLID
carbon_grooveNOT INCLUDED
overall_height4.855 INCHES NOMINAL IN
surface_finishFINISHED
oil_passage_typeHOLE LOCATION NOT OTHERWISE SPECIFIED
pin_hole_bushingNOT INCLUDED
NSN2815-00-248-3787
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 7320455 MFR PISTON,INTERNAL COMBUS
KEY FEATURES
•
CARBON GROOVE: NOT INCLUDED
•
RING GROOVE WIDTH: 0.1000 INCHES NOMINAL SECOND RING IN
•
DISTANCE BETWEEN PIN BOSSES: 1.682 INCHES NOMINAL IN
•
RETAINING RING GROOVE: INCLUDED
•
SURFACE FINISH: FINISHED
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.855 INCHES NOMINAL IN
CARBON GROOVENOT INCLUDED
RING GROOVE WIDTH0.1000 INCHES NOMINAL SECOND RING IN
RING GROOVE WIDTH0.1050 INCHES NOMINAL FIRST RING IN
RING GROOVE WIDTH0.1920 INCHES NOMINAL THIRD RING IN
DISTANCE BETWEEN PIN BOSSES1.682 INCHES NOMINAL IN
RETAINING RING GROOVEINCLUDED
SURFACE FINISHFINISHED
OIL PASSAGE TYPEHOLE LOCATION NOT OTHERWISE SPECIFIED
DIAMETER4.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
292109ASReference document
Same NSN cross-reference
Reference document — Secondary reference
292109Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7320455?
7320455 is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 7320455?
There are 2 known substitutes for 7320455: 292109AS, 292109. Substitute compatibility should be verified for your specific system.
What is the NSN for 7320455?
7320455 is cataloged in the U.S. Government catalog under NSN 2815-00-248-3787. 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.