PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-7907Muffler,exhaust

Cummins Filtration Inc. · NSN 2990-00-401-8369 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-401-8369 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-401-8369. Primary manufacturer part number: T-7907.
Features
  • Muffler,exhaust — FSC 2990
  • Muffler Design: STRAIGHT THROUGH W/BAFFLE
  • Body Shape: ROUND
  • Outlet Inside Diameter: 2.790 INCHES NOMINAL FIRST OUTLET IN
  • Inlet Inside Diameter: 2.790 INCHES NOMINAL SINGLE INLET IN
  • Outlet Location: CENTERED ON END OF BODY
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-401-8369, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Cummins Filtration Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-00-401-8369
Primary Part NumberT-7907
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCummins Filtration Inc.
StatusACTIVE
Muffler DesignSTRAIGHT THROUGH W/BAFFLE
Body ShapeROUND
Outlet Inside Diameter2.790 INCHES NOMINAL FIRST OUTLET IN
Inlet Inside Diameter2.790 INCHES NOMINAL SINGLE INLET IN
Outlet LocationCENTERED ON END OF BODY
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Outlet Connection TypeUNTHREADED FIRST OUTLET
Surface TreatmentALUMINUM
Outlet Projection Length7.625 INCHES NOMINAL FIRST OUTLET IN
Inlet Projection Length7.625 INCHES NOMINAL SINGLE INLET IN
Inlet LocationCENTERED ON END OF BODY
Operating PositionUNIVERSAL
Inlet Connection TypeUNTHREADED SINGLE INLET
Baffle Quantity1
Coolant TypeAIR
Overall Diameter5.625 INCHES NOMINAL IN
Design TypeDRY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-027-61537907 INTERCHANGEABLE
O-Ring
Cooper Machinery Services Llc
7510-00-079-7907TS-441T-4 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
Tapesouth Inc Dba Tapesouth Inc
5905-00-195-42877907 INTERCHANGEABLE
Resistor,fixed,wire Wound
Triplett (bluffton) Corporation Dba Lfe Instruments
2825-00-218-60467907 INTERCHANGEABLE
Spindle,governor
Northrop Grumman Systems Corporation Div Marine Systems
2010-00-362-6821DB7907 INTERCHANGEABLE
Disk,pinion
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
3930-00-544-0295 INTERCHANGEABLE
Cylinder Assembly,hydraulic
5930-00-630-47107907 INTERCHANGEABLE
Switch,thermostatic
Therm-O-Disc Incorporated
5950-00-871-36852134582 INTERCHANGEABLE
Transformer,audio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-01-020-8438 INTERCHANGEABLE
Spud,water Closet
5980-01-033-9926MV5053 INTERCHANGEABLE
Light Emitting Diode
Fairchild Semiconductor Corp
Cross-Reference Index
Part NumberManufacturer
T-7907 PRIMARY Cummins Filtration Inc. (USA)
7907 Cummins Filtration Inc. (USA)
ABT7907 Ar Bee Corp (USA)
ABT7907 Brighton Cromwell Llc (USA)
Related Parts
5331-00-027-6153INTERCHANGEABLE
O-RING
7907
7510-00-079-7907INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
TS-441T-4
5905-00-195-4287INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
7907
2825-00-218-6046INTERCHANGEABLE
SPINDLE,GOVERNOR
7907
2010-00-362-6821INTERCHANGEABLE
DISK,PINION
DB7907
3930-00-544-0295INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC
5930-00-630-4710INTERCHANGEABLE
SWITCH,THERMOSTATIC
7907
5950-00-871-3685INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
2134582
4730-01-020-8438INTERCHANGEABLE
SPUD,WATER CLOSET
5980-01-033-9926INTERCHANGEABLE
LIGHT EMITTING DIODE
MV5053
5950-01-123-1481INTERCHANGEABLE
REACTOR
986257-2B
5935-01-250-5789INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
1400-1296

Frequently Asked Questions

What is NSN 2990-00-401-8369?

NSN 2990-00-401-8369 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-401-8369?

NSN 2990-00-401-8369 has 4 cross-referenced part numbers: T-7907 (Cummins Filtration Inc.), 7907 (Cummins Filtration Inc.), ABT7907 (Ar Bee Corp), ABT7907 (Brighton Cromwell Llc).

What NSN replaces 2990-00-401-8369?

There are 12 known substitutes for 2990-00-401-8369: 5331-00-027-6153, 7510-00-079-7907, 5905-00-195-4287 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-7907?

Key specifications for T-7907: Muffler Design: STRAIGHT THROUGH W/BAFFLE; Body Shape: ROUND; Outlet Inside Diameter: 2.790 INCHES NOMINAL FIRST OUTLET IN; Inlet Inside Diameter: 2.790 INCHES NOMINAL SINGLE INLET IN. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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