PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2538Muffler,exhaust

C V C Enterprises · NSN 2990-00-611-5615 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-611-5615 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-611-5615. Primary manufacturer part number: 2538.
Features
  • Muffler,exhaust — FSC 2990
  • Coolant Type: AIR
  • Tube Quantity: 1
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
  • Inlet Flange Shape: OVAL SINGLE INLET
  • Inlet Location: ON SIDE OF BODY
  • Inlet Flange Mounting Hole Diameter: 0.510 INCHES NOMINAL SINGLE INLET IN
  • Operating Position: HORIZONTAL
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-611-5615, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is C V C Enterprises. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN2990-00-611-5615
Primary Part Number2538
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerC V C Enterprises
StatusCANCELLED
Coolant TypeAIR
Tube Quantity1
Outlet Connection TypeUNTHREADED FIRST OUTLET
Inlet Flange ShapeOVAL SINGLE INLET
Inlet LocationON SIDE OF BODY
Inlet Flange Mounting Hole Diameter0.510 INCHES NOMINAL SINGLE INLET IN
Operating PositionHORIZONTAL
Body ShapeROUND
Center to Center Distance Between Mounting Holes3.620 IN. C TO C DISTANCE OF MTG HOLES SINGLE INLET IN
Outlet LocationCENTRALLY LOCATED IN END SECTION OF BODY
Inlet Flange Mounting Provision and Quantity2 HOLES SINGLE INLET
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Inlet Connection TypeFLANGE SINGLE INLET
Inlet Projection Length1.220 INCHES NOMINAL SINGLE INLET IN
Design TypeDRY
Outlet Projection Length11.740 INCHES NOMINAL FIRST OUTLET IN
Overall Diameter7.120 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5975-00-141-0541867 INTERCHANGEABLE
Cover,junction Box
Raco, a Division of Hubbell Incorporated(delaware)
5307-00-155-228025-38 INTERCHANGEABLE
Stud,plain
Textron Lycoming Inc Williamsport Plant
5325-00-276-42657428210-219 INTERCHANGEABLE
Grommet,nonmetallic
Westinghouse Electric Corp
5120-00-288-8703 INTERCHANGEABLE
Wrench,open End
2010-00-300-4543800768C INTERCHANGEABLE
Oil Seal
Rexnord Industries Llc
2520-00-311-160641053V INTERCHANGEABLE
Retainer,main Trasf
Navistar Intl Corp Truck Br Ohio Plant
2520-00-383-963541084V INTERCHANGEABLE
Retainer,spring
Navistar Intl Corp Truck Br Ohio Plant
5930-00-608-3153D11761G1 INTERCHANGEABLE
Thermostat,control
Dcm Manufacturing, Inc.
4820-00-812-73262538 INTERCHANGEABLE
Cap,valve
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5970-00-873-65622538 INTERCHANGEABLE
Insulator,bushing
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
Cross-Reference Index
Part NumberManufacturer
2538 Alexander Tagg Industries Inc (USA)
2538 PRIMARY C V C Enterprises (USA)
2538 Burns Intl Security Services Inc Sub of Borg-Warner Corp (USA)
72-2054-2 Libby Power Systems, Llc (USA)
72-2054-2 Department of Defense Project Manager-Mobile Electric Power (USA)
Related Parts
5975-00-141-0541INTERCHANGEABLE
COVER,JUNCTION BOX
867
5307-00-155-2280INTERCHANGEABLE
STUD,PLAIN
25-38
5325-00-276-4265INTERCHANGEABLE
GROMMET,NONMETALLIC
7428210-219
5120-00-288-8703INTERCHANGEABLE
WRENCH,OPEN END
2010-00-300-4543INTERCHANGEABLE
OIL SEAL
800768C
2520-00-311-1606INTERCHANGEABLE
RETAINER,MAIN TRASF
41053V
2520-00-383-9635INTERCHANGEABLE
RETAINER,SPRING
41084V
5930-00-608-3153INTERCHANGEABLE
THERMOSTAT,CONTROL
D11761G1
4820-00-812-7326INTERCHANGEABLE
CAP,VALVE
2538
5970-00-873-6562INTERCHANGEABLE
INSULATOR,BUSHING
2538
1660-00-910-2904INTERCHANGEABLE
SHAFT,ACTUATOR
2538
5935-00-946-2281INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SMB421356

Frequently Asked Questions

What is NSN 2990-00-611-5615?

NSN 2990-00-611-5615 is a Muffler,exhaust, manufactured by C V C Enterprises, classified under FSC 2990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2990-00-611-5615?

NSN 2990-00-611-5615 has 5 cross-referenced part numbers: 2538 (Alexander Tagg Industries Inc), 2538 (C V C Enterprises), 2538 (Burns Intl Security Services Inc Sub of Borg-Warner Corp), 72-2054-2 (Libby Power Systems, Llc), 72-2054-2 (Department of Defense Project Manager-Mobile Electric Power).

What NSN replaces 2990-00-611-5615?

There are 12 known substitutes for 2990-00-611-5615: 5975-00-141-0541, 5307-00-155-2280, 5325-00-276-4265 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2538?

Key specifications for 2538: Coolant Type: AIR; Tube Quantity: 1; Outlet Connection Type: UNTHREADED FIRST OUTLET; Inlet Flange Shape: OVAL SINGLE INLET. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2990-00-611-5615 still in active supply?

NSN 2990-00-611-5615 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.
PartsTable Design LLC · partstable.com