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112-3249 — MUFFLER,EXHAUST

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

112-3249: MUFFLER,EXHAUST.

The MUFFLER,EXHAUST is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, body_shape: OVAL, design_type: DRY, coolant_type: AIR, overall_width: 10.250 INCHES NOMINAL IN, inlet_location: LOCATED ON HORIZONTAL CENTERLINE OF BODY. This part is cataloged in the U.S.

Government catalog under NSN 2990-00-427-6904, 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
112-3249
NSN: 2990-00-427-6904
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
body_shapeOVAL
design_typeDRY
coolant_typeAIR
overall_width10.250 INCHES NOMINAL IN
inlet_locationLOCATED ON HORIZONTAL CENTERLINE OF BODY
overall_height6.375 INCHES NOMINAL IN
overall_length27.250 INCHES NOMINAL IN
outlet_locationNONCENTRALLY LOCATED IN END SECTION OF BODY
special_featuresWITH MTG STUDS
operating_positionUNIVERSAL
inlet_connection_typeUNTHREADED SINGLE INLET
NSN2990-00-427-6904
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MUFFLER,EXHAUST TITLE COMPONENT PN 112-3249 MFR MUFFLER,EXHAUST
KEY FEATURES
•
OPERATING POSITION: UNIVERSAL
•
INLET OUTSIDE DIAMETER: 4.125 INCHES NOMINAL SINGLE INLET IN
•
INLET LOCATION: LOCATED ON HORIZONTAL CENTERLINE OF BODY
•
COOLANT TYPE: AIR
•
DESIGN TYPE: DRY
•
OUTLET INSIDE DIAMETER: 4.000 INCHES NOMINAL FIRST OUTLET IN
•
INLET PROJECTION LENGTH: 2.125 INCHES NOMINAL SINGLE INLET IN
TECHNICAL CHARACTERISTICS
OPERATING POSITIONUNIVERSAL
OVERALL HEIGHT6.375 INCHES NOMINAL IN
INLET OUTSIDE DIAMETER4.125 INCHES NOMINAL SINGLE INLET IN
INLET LOCATIONLOCATED ON HORIZONTAL CENTERLINE OF BODY
COOLANT TYPEAIR
DESIGN TYPEDRY
OUTLET INSIDE DIAMETER4.000 INCHES NOMINAL FIRST OUTLET IN
INLET PROJECTION LENGTH2.125 INCHES NOMINAL SINGLE INLET IN
OVERALL LENGTH27.250 INCHES NOMINAL IN
OVERALL WIDTH10.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
8S5034Reference document
Same NSN cross-reference
Reference document — Secondary reference
4N7870Reference document
Same NSN cross-reference
Reference document — Secondary reference
MJM08-0047Reference 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 112-3249?
112-3249 is a MUFFLER,EXHAUST.
What parts can replace 112-3249?
There are 3 known substitutes for 112-3249: 8S5034, 4N7870, MJM08-0047. Substitute compatibility should be verified for your specific system.
What is the NSN for 112-3249?
112-3249 is cataloged in the U.S. Government catalog under NSN 2990-00-427-6904. 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.