ADH5A — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

ADH5A: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 234.0 OUNCES OZ, diameter: 5.250 INCHES NOMINAL IN, material: STEEL, head_style: DOME, oil_groove: INCLUDED, skirt_type: SOLID. This part is cataloged in the U.S.

Government catalog under NSN 2815-00-338-7986, 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

ADH5A

NSN: 2815-00-338-7986
FSC: 2815 — Diesel Engines and Components
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)

SPECIFICATIONS

weight	234.0 OUNCES OZ
diameter	5.250 INCHES NOMINAL IN
material	STEEL
head_style	DOME
oil_groove	INCLUDED
skirt_type	SOLID
carbon_groove	NOT INCLUDED
overall_height	8.438 INCHES NOMINAL IN
surface_finish	FINISHED
oil_passage_type	HOLE SIXTH RING
pin_hole_bushing	NOT INCLUDED
special_features	NO PISTON PINHOLE,DESIGNED FORCARRIER INSERT WITHFLOATING BUSHINGTYPE ROD
NSN	2815-00-338-7986

COMPONENT DIAGRAM

KEY FEATURES

•

CARBON GROOVE: NOT INCLUDED

•

RING GROOVE WIDTH: 0.2500 INCHES NOMINAL FOURTH RING IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	8.438 INCHES NOMINAL IN
CARBON GROOVE	NOT INCLUDED
RING GROOVE WIDTH	0.2500 INCHES NOMINAL FOURTH RING IN
RING GROOVE WIDTH	0.1875 INCHES NOMINAL FIFTH RING IN
RING GROOVE WIDTH	0.1875 INCHES NOMINAL SIXTH RING IN
RING GROOVE WIDTH	0.2810 INCHES NOMINAL FIRST RING IN
RING GROOVE WIDTH	0.2810 INCHES NOMINAL SECOND RING IN
RING GROOVE WIDTH	0.2810 INCHES NOMINAL THIRD RING IN
RETAINING RING GROOVE	NOT INCLUDED
SURFACE FINISH	FINISHED

OTHER ITEMS IN FSC 2815 — Diesel Engines and Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2815-00-011-9099 2815-00-017-1875 2815-00-024-4185 2815-00-033-1482 2815-00-036-5350 2815-00-179-7630 2815-00-346-4639 2815-00-592-5308

SUBSTITUTES & CROSS-REFERENCES 1

CADH5AReference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is ADH5A?

ADH5A is a PISTON,INTERNAL COMBUSTION ENGIN.

What parts can replace ADH5A?

There is 1 known substitute for ADH5A: CADH5A. Substitute compatibility should be verified for your specific system.

What is the NSN for ADH5A?

ADH5A is cataloged in the U.S. Government catalog under NSN 2815-00-338-7986. This indicates validated use in U.S. government and defense supply chains.

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ADH5A — PISTON,INTERNAL COMBUSTION ENGIN

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