7704058 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

7704058: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include weight: 104.0 OUNCES OZ, diameter: 5.188 INCHES NOMINAL IN, material: ALUMINUM ALLOY, oversize: 0.020 INCHES NOMINAL IN, oil_groove: INCLUDED, carbon_groove: NOT INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-770-4058, 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

7704058

NSN: 2805-00-770-4058
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

weight	104.0 OUNCES OZ
diameter	5.188 INCHES NOMINAL IN
material	ALUMINUM ALLOY
oversize	0.020 INCHES NOMINAL IN
oil_groove	INCLUDED
carbon_groove	NOT INCLUDED
overall_height	6.500 INCHES NOMINAL IN
surface_finish	FINISHED
ring_groove_width	0.1250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
ring_groove_diameter	6.381 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
ring_groove_quantity	4
finished_size_designation	OVERSIZE
NSN	2805-00-770-4058

COMPONENT DIAGRAM

KEY FEATURES

•

CARBON GROOVE: NOT INCLUDED

•

RING GROOVE WIDTH: 0.1250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN

•

SURFACE FINISH: FINISHED

•

DIAMETER: 5.188 INCHES NOMINAL IN

•

RING GROOVE DIAMETER: 6.381 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN

•

OIL GROOVE: INCLUDED

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	6.500 INCHES NOMINAL IN
CARBON GROOVE	NOT INCLUDED
RING GROOVE WIDTH	0.1250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SURFACE FINISH	FINISHED
DIAMETER	5.188 INCHES NOMINAL IN
RING GROOVE DIAMETER	6.381 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OIL GROOVE	INCLUDED
WEIGHT	104.0 OUNCES OZ
RING GROOVE QUANTITY	4
OVERSIZE	0.020 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.

2805-00-010-2959 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 2

32122AS020Reference document

Same NSN cross-reference

Reference document — Secondary reference

394869Reference 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 7704058?

7704058 is a PISTON,INTERNAL COMBUSTION ENGIN.

What parts can replace 7704058?

There are 2 known substitutes for 7704058: 32122AS020, 394869. Substitute compatibility should be verified for your specific system.

What is the NSN for 7704058?

7704058 is cataloged in the U.S. Government catalog under NSN 2805-00-770-4058. This indicates validated use in U.S. government and defense supply chains.

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7704058 — PISTON,INTERNAL COMBUSTION ENGIN

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