PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

T-1294Muffler,exhaust

Name: T-1294
SKU: 2990-00-736-0140

Cummins Filtration Inc. · NSN 2990-00-736-0140 · FSC 2990 · No Item Name Available

Verified by PartsTable

NSN 2990-00-736-0140 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-736-0140. Primary manufacturer part number: T-1294.

2990-00-736-0140 — No Item Name Available illustration

Features

Muffler,exhaust — FSC 2990
Muffler Design: STRAIGHT THROUGH
Design Type: DRY
Outlet Projection Length: 2.312 INCHES NOMINAL FIRST OUTLET IN
Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY
Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
Body Shape: ROUND
Inlet Thread Location: EXTERNAL SINGLE INLET

Applications

Applications requiring Steel Location Not Otherwise Specified construction

General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-736-0140, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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

Parameter	Value
NSN	2990-00-736-0140
Primary Part Number	T-1294
Item Name	Muffler,exhaust
FSC / FSG	2990 / 29 — No Item Name Available
Manufacturer	Cummins Filtration Inc.
Status	ACTIVE
Muffler Design	STRAIGHT THROUGH
Design Type	DRY
Outlet Projection Length	2.312 INCHES NOMINAL FIRST OUTLET IN
Inlet Location	CENTRALLY LOCATED IN END SECTION OF BODY
Material	STEEL LOCATION NOT OTHERWISE SPECIFIED
Body Shape	ROUND
Inlet Thread Location	EXTERNAL SINGLE INLET
Inlet Projection Length	2.312 INCHES NOMINAL SINGLE INLET IN
Outlet Thread Size	1.500-11-1/2 FIRST OUTLET
Thread Location	EXTERNAL FIRST OUTLET
Outlet Thread Direction	RIGHT-HAND FIRST OUTLET
Outlet Connection Type	THREADED FIRST OUTLET
Thread Direction	RIGHT-HAND SINGLE INLET
Overall Diameter	4.500 INCHES NOMINAL IN
Outlet Location	CENTRALLY LOCATED IN END SECTION OF BODY
Coolant Type	AIR
Outlet Thread Series Designator	NPT FIRST OUTLET
Inlet Connection Type	THREADED SINGLE INLET
Inlet Thread Series Designator	NPT SINGLE INLET
Inlet Thread Size	1.500-11-1/2 SINGLE INLET

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 12

5325-00-174-5322129-4 INTERCHANGEABLE

Grommet,nonmetallic

Lockheed Martin Corporation Div Rms

5950-00-255-33331294 INTERCHANGEABLE

Transformer,power

Standard Industries

2920-00-374-95951294 INTERCHANGEABLE

Cable Assembly,spec

Champion Aerospace Llc

5365-00-447-88601294 INTERCHANGEABLE

Spacer,plate

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic

1650-00-485-5949 INTERCHANGEABLE

Piston,linear Actuating Cylinder

5120-00-525-7250T1294 INTERCHANGEABLE

Assy Tool,vale

Eaton Aerospace Llc Dba Eaton Aerospace Jackson

3110-00-554-575680GX227 INTERCHANGEABLE

Bearing,ball,annular

Cotta Transmission Co Llc

5305-00-639-75701294 INTERCHANGEABLE

Screw,machine

Telemechanics Inc

5930-00-996-51822266242 INTERCHANGEABLE

Switch,rotary

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

5940-01-128-07541294 INTERCHANGEABLE

Cap,binding Post

Electro Scientific Industries Inc

Cross-Reference Index

Part Number	Manufacturer
ABT1294	Ar Bee Corp (USA)
ABT1294	Brighton Cromwell Llc (USA)
1294	Cummins Filtration Inc. (USA)
WD-49	Wisconsin Motors, Llc (USA)
T-1294 PRIMARY	Cummins Filtration Inc. (USA)
506676	Vme Equipment of Canada Ltd (CAN)

Related Parts

5325-00-174-5322INTERCHANGEABLE

GROMMET,NONMETALLIC

129-4

5950-00-255-3333INTERCHANGEABLE

TRANSFORMER,POWER

1294

2920-00-374-9595INTERCHANGEABLE

CABLE ASSEMBLY,SPEC

1294

5365-00-447-8860INTERCHANGEABLE

SPACER,PLATE

1294

1650-00-485-5949INTERCHANGEABLE

PISTON,LINEAR ACTUATING CYLINDER

5120-00-525-7250INTERCHANGEABLE

ASSY TOOL,VALE

T1294

3110-00-554-5756INTERCHANGEABLE

BEARING,BALL,ANNULAR

80GX227

5305-00-639-7570INTERCHANGEABLE

SCREW,MACHINE

1294

5930-00-996-5182INTERCHANGEABLE

SWITCH,ROTARY

2266242

5940-01-128-0754INTERCHANGEABLE

CAP,BINDING POST

1294

4710-01-147-8024INTERCHANGEABLE

TUBE ASSEMBLY,METAL

23511853

6220-01-201-5317INTERCHANGEABLE

LIGHT,MARKER,CLEARANCE

1294

Frequently Asked Questions

What is NSN 2990-00-736-0140?

NSN 2990-00-736-0140 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 2990-00-736-0140?

NSN 2990-00-736-0140 has 6 cross-referenced part numbers: ABT1294 (Ar Bee Corp), ABT1294 (Brighton Cromwell Llc), 1294 (Cummins Filtration Inc.), WD-49 (Wisconsin Motors, Llc), T-1294 (Cummins Filtration Inc.) and 1 more.

What NSN replaces 2990-00-736-0140?

There are 12 known substitutes for 2990-00-736-0140: 5325-00-174-5322, 5950-00-255-3333, 2920-00-374-9595 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-1294?

Key specifications for T-1294: Muffler Design: STRAIGHT THROUGH; Design Type: DRY; Outlet Projection Length: 2.312 INCHES NOMINAL FIRST OUTLET IN; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY. 21 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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