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391188 — MUFFLER,EXHAUST

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

391188: MUFFLER,EXHAUST.

The MUFFLER,EXHAUST is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED, body_shape: ROUND, design_type: WET, coolant_type: WATER, inlet_location: TOP END OF BODYL, muffler_design: BAFFLE. This part is cataloged in the U.S.

Government catalog under NSN 2990-01-099-0747, 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
391188
NSN: 2990-01-099-0747
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 1UVT5 — BRP US INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY LOCATION NOT OTHERWISE SPECIFIED
body_shapeROUND
design_typeWET
coolant_typeWATER
inlet_locationTOP END OF BODYL
muffler_designBAFFLE
overall_length6.000 INCHES NOMINAL IN
baffle_quantity6
overall_diameter3.000 INCHES NOMINAL IN
surface_treatmentANODIZE
operating_positionVERTICAL
inlet_connection_typeUNTHREADED SINGLE INLET
NSN2990-01-099-0747
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MUFFLER,EXHAUST TITLE COMPONENT PN 391188 MFR MUFFLER,EXHAUST
KEY FEATURES
•
OPERATING POSITION: VERTICAL
•
INLET OUTSIDE DIAMETER: 3.000 INCHES NOMINAL SINGLE INLET IN
•
INLET LOCATION: TOP END OF BODYL
•
COOLANT TYPE: WATER
•
DESIGN TYPE: WET
•
OVERALL DIAMETER: 3.000 INCHES NOMINAL IN
•
INLET PROJECTION LENGTH: 0.250 INCHES NOMINAL SINGLE INLET IN
•
BAFFLE QUANTITY: 6
TECHNICAL CHARACTERISTICS
OPERATING POSITIONVERTICAL
INLET OUTSIDE DIAMETER3.000 INCHES NOMINAL SINGLE INLET IN
INLET LOCATIONTOP END OF BODYL
COOLANT TYPEWATER
DESIGN TYPEWET
OVERALL DIAMETER3.000 INCHES NOMINAL IN
INLET PROJECTION LENGTH0.250 INCHES NOMINAL SINGLE INLET IN
BAFFLE QUANTITY6
OVERALL LENGTH6.000 INCHES NOMINAL IN
MUFFLER DESIGNBAFFLE
OTHER ITEMS IN FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2990-00-001-0001 2990-00-001-1248 2990-00-001-1250 2990-00-001-2055 2990-00-001-3498 2990-00-001-3520 2990-00-001-3521 2990-00-001-3522
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 391188?
391188 is a MUFFLER,EXHAUST.
What is the NSN for 391188?
391188 is cataloged in the U.S. Government catalog under NSN 2990-01-099-0747. 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.