PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D029Muffler,exhaust

Maremont Corp · NSN 2990-00-142-0233 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-142-0233 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-142-0233. Primary manufacturer part number: D029.
Features
  • Muffler,exhaust — FSC 2990
  • Inlet Projection Length: 2.188 INCHES NOMINAL SINGLE INLET IN
  • Outlet Projection Length: 1.813 INCHES NOMINAL FIRST OUTLET IN
  • Inlet Inside Diameter: 2.500 INCHES NOMINAL SINGLE INLET IN
  • Outlet Inside Diameter: 1.750 INCHES NOMINAL FIRST OUTLET IN
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Inlet Location: CENTRALLY IN END SECTION
  • Operating Position: UNIVERSAL
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-142-0233, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Maremont Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2990-00-142-0233
Primary Part NumberD029
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerMaremont Corp
StatusCANCELLED
Inlet Projection Length2.188 INCHES NOMINAL SINGLE INLET IN
Outlet Projection Length1.813 INCHES NOMINAL FIRST OUTLET IN
Inlet Inside Diameter2.500 INCHES NOMINAL SINGLE INLET IN
Outlet Inside Diameter1.750 INCHES NOMINAL FIRST OUTLET IN
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Inlet LocationCENTRALLY IN END SECTION
Operating PositionUNIVERSAL
Design TypeDRY
Muffler DesignSTRAIGHT THROUGH
Coolant TypeAIR
Outlet LocationCENTRALLY IN END SECTION
Overall Diameter5.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3010-00-082-1093921021 INTERCHANGEABLE
Parts Kit,disk Ring
Rexnord Industries, Llc Div Couplings Division
4720-00-168-210755Y INTERCHANGEABLE
Hose,air Duct
Dynatect Ro-Lab, Inc.
7510-00-224-767621021 INTERCHANGEABLE
Inking Pad,rubber Stamp
Avery Label
5330-00-292-1425 INTERCHANGEABLE
Gasket
5315-00-298-9161MS20066-122 INTERCHANGEABLE
Key,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5330-00-333-626722940 INTERCHANGEABLE
Seal,plain Encased
Cnh Industrial America Llc Dba Cnh America
3110-00-516-5491209 INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
4810-00-738-635821021 INTERCHANGEABLE
Valve,solenoid
Rocker Solenoid Co Dba Rocker Solenoid Co
5930-00-792-277403-73008 PIECE 13 INTERCHANGEABLE
Switch,push
R S P Industries Inc
3110-00-853-44446306-2ZJEM INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
Cross-Reference Index
Part NumberManufacturer
36U International Parts Corp Div of Midas-International Corp (USA)
2294 Harvard Industries (USA)
152 Mahle Aftermarket Inc. Dba Ae Clevite Inc (USA)
603 Walker Mfg Co (USA)
D029 PRIMARY Maremont Corp (USA)
1666294 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
7EQ5230 Ford Motor Company (USA)
290 Ap Parts Co Youngstown Div (USA)
507 PRIMARY Merit Industries Inc (USA)
7EQ5230 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
1916 PRIMARY Arvin Industries Inc (USA)
55Y International Parts Corp Div of Midas-International Corp (USA)
30 Soundmaster Ltd (CAN)
21021 PRIMARY Walker Mfg Co (USA)
64BB Maremont Corp (USA)
FD48 Maremont Corp (USA)
Related Parts
3010-00-082-1093INTERCHANGEABLE
PARTS KIT,DISK RING
921021
4720-00-168-2107INTERCHANGEABLE
HOSE,AIR DUCT
55Y
7510-00-224-7676INTERCHANGEABLE
INKING PAD,RUBBER STAMP
21021
5330-00-292-1425INTERCHANGEABLE
GASKET
5315-00-298-9161INTERCHANGEABLE
KEY,MACHINE
MS20066-122
5330-00-333-6267INTERCHANGEABLE
SEAL,PLAIN ENCASED
22940
3110-00-516-5491INTERCHANGEABLE
BEARING,BALL,ANNULAR
209
4810-00-738-6358INTERCHANGEABLE
VALVE,SOLENOID
21021
5930-00-792-2774INTERCHANGEABLE
SWITCH,PUSH
03-73008 PIECE 13
3110-00-853-4444INTERCHANGEABLE
BEARING,BALL,ANNULAR
6306-2ZJEM
6105-00-905-2698INTERCHANGEABLE
END BELL,ELECTRICAL ROTATING EQU
2294
5940-00-983-6097INTERCHANGEABLE
TERMINAL BOARD

Frequently Asked Questions

What is NSN 2990-00-142-0233?

NSN 2990-00-142-0233 is a Muffler,exhaust, manufactured by Maremont Corp, classified under FSC 2990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2990-00-142-0233?

NSN 2990-00-142-0233 has 16 cross-referenced part numbers: 36U (International Parts Corp Div of Midas-International Corp), 2294 (Harvard Industries), 152 (Mahle Aftermarket Inc. Dba Ae Clevite Inc), 603 (Walker Mfg Co), D029 (Maremont Corp) and 11 more.

What NSN replaces 2990-00-142-0233?

There are 12 known substitutes for 2990-00-142-0233: 3010-00-082-1093, 4720-00-168-2107, 7510-00-224-7676 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D029?

Key specifications for D029: Inlet Projection Length: 2.188 INCHES NOMINAL SINGLE INLET IN; Outlet Projection Length: 1.813 INCHES NOMINAL FIRST OUTLET IN; Inlet Inside Diameter: 2.500 INCHES NOMINAL SINGLE INLET IN; Outlet Inside Diameter: 1.750 INCHES NOMINAL FIRST OUTLET IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2990-00-142-0233 still in active supply?

NSN 2990-00-142-0233 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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