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ABT6550 — MUFFLER,EXHAUST

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

ABT6550: MUFFLER,EXHAUST.

The MUFFLER,EXHAUST is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, design_type: DRY, coolant_type: AIR, inlet_location: OFF-CENTER ON END OF BODY, muffler_design: STRAIGHT THROUGH W/BAFFLE, overall_length: 11.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2990-00-075-0113, 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
ABT6550
NSN: 2990-00-075-0113
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
CAGE: 3NNX8 — BRIGHTON CROMWELL LLC (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
design_typeDRY
coolant_typeAIR
inlet_locationOFF-CENTER ON END OF BODY
muffler_designSTRAIGHT THROUGH W/BAFFLE
overall_length11.000 INCHES NOMINAL IN
baffle_quantity1
outlet_locationOFF-CENTER ON END OF BODY
overall_diameter5.620 INCHES NOMINAL IN
operating_positionUNIVERSAL
inlet_inside_diameter1.790 INCHES NOMINAL SINGLE INLET IN
outlet_inside_diameter1.495 INCHES NOMINAL FIRST OUTLET IN
NSN2990-00-075-0113
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MUFFLER,EXHAUST TITLE COMPONENT PN ABT6550 MFR MUFFLER,EXHAUST
KEY FEATURES
•
OPERATING POSITION: UNIVERSAL
•
INLET LOCATION: OFF-CENTER ON END OF BODY
•
COOLANT TYPE: AIR
•
DESIGN TYPE: DRY
•
OVERALL DIAMETER: 5.620 INCHES NOMINAL IN
•
OUTLET INSIDE DIAMETER: 1.495 INCHES NOMINAL FIRST OUTLET IN
•
INLET PROJECTION LENGTH: 1.375 INCHES NOMINAL SINGLE INLET IN
•
BAFFLE QUANTITY: 1
TECHNICAL CHARACTERISTICS
OPERATING POSITIONUNIVERSAL
INLET LOCATIONOFF-CENTER ON END OF BODY
COOLANT TYPEAIR
DESIGN TYPEDRY
OVERALL DIAMETER5.620 INCHES NOMINAL IN
OUTLET INSIDE DIAMETER1.495 INCHES NOMINAL FIRST OUTLET IN
INLET PROJECTION LENGTH1.375 INCHES NOMINAL SINGLE INLET IN
BAFFLE QUANTITY1
OVERALL LENGTH11.000 INCHES NOMINAL IN
MUFFLER DESIGNSTRAIGHT THROUGH W/BAFFLE
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 1
74756205Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ABT6550?
ABT6550 is a MUFFLER,EXHAUST.
What parts can replace ABT6550?
There is 1 known substitute for ABT6550: 74756205. Substitute compatibility should be verified for your specific system.
What is the NSN for ABT6550?
ABT6550 is cataloged in the U.S. Government catalog under NSN 2990-00-075-0113. 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.