PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3K3124Muffler,exhaust

Caterpillar Inc Div Caterpillar Defense · NSN 2990-00-846-6054 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-846-6054 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-846-6054. Primary manufacturer part number: 3K3124.
Features
  • Muffler,exhaust — FSC 2990
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Surface Treatment: ALUMINUM ALLOY
  • Inlet Location: LOCATED CENTER OF END OF BODY
  • Outlet Location: LOCATED CENTER OF END OF BODY
  • Inlet Projection Length: 1.375 INCHES NOMINAL SINGLE INLET IN
  • Coolant Type: AIR
  • Inlet Inside Diameter: 3.000 INCHES NOMINAL SINGLE INLET IN
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-846-6054, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN2990-00-846-6054
Primary Part Number3K3124
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Surface TreatmentALUMINUM ALLOY
Inlet LocationLOCATED CENTER OF END OF BODY
Outlet LocationLOCATED CENTER OF END OF BODY
Inlet Projection Length1.375 INCHES NOMINAL SINGLE INLET IN
Coolant TypeAIR
Inlet Inside Diameter3.000 INCHES NOMINAL SINGLE INLET IN
Body ShapeROUND
Operating PositionUNIVERSAL
Outlet Projection Length4.000 INCHES NOMINAL FIRST OUTLET IN
Overall Diameter8.000 INCHES NOMINAL IN
Design TypeDRY
Outlet Outside Diameter3.156 INCHES NOMINAL FIRST OUTLET IN
Inlet Connection TypeUNTHREADED SINGLE INLET
Outlet Inside Diameter3.000 INCHES NOMINAL FIRST OUTLET IN
Outlet Connection TypeUNTHREADED FIRST OUTLET
Muffler DesignSTRAIGHT THROUGH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6105-00-230-920880001 INTERCHANGEABLE
Motor,alternating Current
Reliance Electric Company Dba Reliance & Dodge Brands
5330-00-358-70891855701 INTERCHANGEABLE
Gasket
Borgwarner Pds (anderson), L.l.c.
5935-00-473-53328000-1 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
3110-00-679-4151 INTERCHANGEABLE
Bearing,ball,annular
4820-00-866-7985123312-2-1 INTERCHANGEABLE
Valve,check
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5935-00-977-7454713502-1 INTERCHANGEABLE
Connector,plug,electrical
Raytheon Company Div Rmd Strategic
5935-01-043-5841 INTERCHANGEABLE
Connector,plug,electrical
5342-01-084-81188001-XU INTERCHANGEABLE
Latch Assy
Eastern Co Div Eberhard Manufacturing
6680-01-085-47208000-1 INTERCHANGEABLE
Meter,impeller Type,liquid
Cameron Energy Services Corp.
6680-01-108-41458000-1 INTERCHANGEABLE
Transmitter,liquid Quantity
Mc Products Inc
Cross-Reference Index
Part NumberManufacturer
IPD3K3124 Industrial Parts Depot, Llc Dba Ipd (USA)
3K3124 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
80001 Riker Products (USA)
190-9121 PRIMARY Stemco Inc Sub of Coltec Industries Inc (USA)
Related Parts
6105-00-230-9208INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
80001
5330-00-358-7089INTERCHANGEABLE
GASKET
1855701
5935-00-473-5332INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
8000-1
3110-00-679-4151INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-00-866-7985INTERCHANGEABLE
VALVE,CHECK
123312-2-1
5935-00-977-7454INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
713502-1
5935-01-043-5841INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5342-01-084-8118INTERCHANGEABLE
LATCH ASSY
8001-XU
6680-01-085-4720INTERCHANGEABLE
METER,IMPELLER TYPE,LIQUID
8000-1
6680-01-108-4145INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
8000-1
6625-01-123-0436INTERCHANGEABLE
COUNTER,ELECTRONIC,DIGITAL READO
80001
5950-01-176-4873INTERCHANGEABLE
TRANSFORMER
8-0001

Frequently Asked Questions

What is NSN 2990-00-846-6054?

NSN 2990-00-846-6054 is a Muffler,exhaust, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-846-6054?

NSN 2990-00-846-6054 has 4 cross-referenced part numbers: IPD3K3124 (Industrial Parts Depot, Llc Dba Ipd), 3K3124 (Caterpillar Inc Div Caterpillar Defense), 80001 (Riker Products), 190-9121 (Stemco Inc Sub of Coltec Industries Inc).

What NSN replaces 2990-00-846-6054?

There are 12 known substitutes for 2990-00-846-6054: 6105-00-230-9208, 5330-00-358-7089, 5935-00-473-5332 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3K3124?

Key specifications for 3K3124: Material: STEEL LOCATION NOT OTHERWISE SPECIFIED; Surface Treatment: ALUMINUM ALLOY; Inlet Location: LOCATED CENTER OF END OF BODY; Outlet Location: LOCATED CENTER OF END OF BODY. 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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