PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-7418Muffler,exhaust

Cummins Filtration Inc. · NSN 2990-00-996-7266 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-996-7266 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-996-7266. Primary manufacturer part number: T-7418.
Features
  • Muffler,exhaust — FSC 2990
  • Inlet Projection Length: 1.875 INCHES NOMINAL SECOND INLET IN
  • Outlet Flange Shape: OVAL FIRST OUTLET
  • Inlet Outside Diameter: 1.1250 INCHES NOMINAL SECOND INLET IN
  • Outlet Location: LOCATED ON OD OF BODY 2.000 IN. FROM BOTTOM IN
  • Operating Position: HORIZONTAL
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
  • Inlet Connection Type: UNTHREADED SECOND INLET
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-996-7266, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-00-996-7266
Primary Part NumberT-7418
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCummins Filtration Inc.
StatusACTIVE
Inlet Projection Length1.875 INCHES NOMINAL SECOND INLET IN
Outlet Flange ShapeOVAL FIRST OUTLET
Inlet Outside Diameter1.1250 INCHES NOMINAL SECOND INLET IN
Outlet LocationLOCATED ON OD OF BODY 2.000 IN. FROM BOTTOM IN
Operating PositionHORIZONTAL
Outlet Connection TypeUNTHREADED FIRST OUTLET
Inlet Connection TypeUNTHREADED SECOND INLET
Outlet Flange Mounting Hole Diameter0.281 INCHES NOMINAL FIRST OUTLET IN
Surface TreatmentPAINT
Inlet LocationCENTRALLY LOCATED IN END OF BODY FOR NO. 4 CYL
Inlet Connection TypeUNTHREADED FIRST INLET
Tube Quantity1
Design TypeDRY
Outlet Projection Length1.875 INCHES NOMINAL FIRST OUTLET IN
Baffle Quantity3
Outlet Inside Diameter0.937 INCHES NOMINAL FIRST OUTLET IN
Overall Diameter4.250 INCHES NOMINAL IN
Inlet LocationON OD OF BODY 1.125 IN. FROM END OF BODY FOR NO. 2 CYL IN
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Coolant TypeAIR
Muffler DesignBAFFLE
Body ShapeROUND
FSC Application DataEXHAUST SYSTEM,ENGINE,NON-AIRCRAFT
Outlet Outside Diameter1.000 INCHES NOMINAL FIRST OUTLET IN
Inlet Inside Diameter1.031 INCHES NOMINAL FIRST INLET IN
Inlet Inside Diameter1.0310 INCHES NOMINAL SECOND INLET IN
Outlet Flange Mounting Provision and Quantity2 HOLES FIRST OUTLET
Inlet Outside Diameter1.125 INCHES NOMINAL FIRST INLET IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5985-00-093-55448010489 INTERCHANGEABLE
Attenuator,variable
Us Army Aviation and Missile Command
7330-00-205-3093 INTERCHANGEABLE
Masher,potato,hand
5930-00-258-4705 INTERCHANGEABLE
Switch,rotary
5975-00-519-78177418 INTERCHANGEABLE
Cover,conduit Outlet
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
6610-00-908-7038927-145 INTERCHANGEABLE
Bearing,ball
Avionics Specialties, Inc.
3040-01-252-0549 INTERCHANGEABLE
Pawl
5315-01-338-05137-4-18 INTERCHANGEABLE
Pin,spring
General Crane and Hoist, Inc.
6260-01-341-87149-87140PF INTERCHANGEABLE
Light,chemiluminescent
Cyalume Technologies Inc Dba Cyalume Technologies Inc
5140-01-345-8846 INTERCHANGEABLE
Tool Box,portable
5962-01-395-9758 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
7418 Cummins Filtration Inc. (USA)
ABT7418 Brighton Cromwell Llc (USA)
T-7418 PRIMARY Cummins Filtration Inc. (USA)
ABT7418 Ar Bee Corp (USA)
927145 Am General Llc (USA)
Related Parts
5985-00-093-5544INTERCHANGEABLE
ATTENUATOR,VARIABLE
8010489
7330-00-205-3093INTERCHANGEABLE
MASHER,POTATO,HAND
5930-00-258-4705INTERCHANGEABLE
SWITCH,ROTARY
5975-00-519-7817INTERCHANGEABLE
COVER,CONDUIT OUTLET
7418
6610-00-908-7038INTERCHANGEABLE
BEARING,BALL
927-145
3040-01-252-0549INTERCHANGEABLE
PAWL
5315-01-338-0513INTERCHANGEABLE
PIN,SPRING
7-4-18
6260-01-341-8714INTERCHANGEABLE
LIGHT,CHEMILUMINESCENT
9-87140PF
5140-01-345-8846INTERCHANGEABLE
TOOL BOX,PORTABLE
5962-01-395-9758INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5130-01-400-0074INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 2990-00-996-7266?

NSN 2990-00-996-7266 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 2990-00-996-7266?

NSN 2990-00-996-7266 has 5 cross-referenced part numbers: 7418 (Cummins Filtration Inc.), ABT7418 (Brighton Cromwell Llc), T-7418 (Cummins Filtration Inc.), ABT7418 (Ar Bee Corp), 927145 (Am General Llc).

What NSN replaces 2990-00-996-7266?

There are 11 known substitutes for 2990-00-996-7266: 5985-00-093-5544, 7330-00-205-3093, 5930-00-258-4705 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-7418?

Key specifications for T-7418: Inlet Projection Length: 1.875 INCHES NOMINAL SECOND INLET IN; Outlet Flange Shape: OVAL FIRST OUTLET; Inlet Outside Diameter: 1.1250 INCHES NOMINAL SECOND INLET IN; Outlet Location: LOCATED ON OD OF BODY 2.000 IN. FROM BOTTOM IN. 30 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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