PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-6981Muffler,exhaust

Cummins Filtration Inc. · NSN 2990-00-234-3041 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-234-3041 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-234-3041. Primary manufacturer part number: T-6981.
Features
  • Muffler,exhaust — FSC 2990
  • Body Shape: ROUND
  • Design Type: DRY
  • Operating Position: HORIZONTAL
  • Outlet Location: CENTRALLY LOCATED IN END SECTION OF BODY
  • Inlet Projection Length: 1.500 INCHES NOMINAL SINGLE INLET IN
  • Tube Quantity: 1
  • Outlet Projection Length: 1.500 INCHES NOMINAL FIRST OUTLET IN
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-234-3041, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-00-234-3041
Primary Part NumberT-6981
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCummins Filtration Inc.
StatusACTIVE
Body ShapeROUND
Design TypeDRY
Operating PositionHORIZONTAL
Outlet LocationCENTRALLY LOCATED IN END SECTION OF BODY
Inlet Projection Length1.500 INCHES NOMINAL SINGLE INLET IN
Tube Quantity1
Outlet Projection Length1.500 INCHES NOMINAL FIRST OUTLET IN
Inlet LocationCENTRALLY LOCATED IN END SECTION OF BODY
Inlet Connection TypeUNTHREADED SINGLE INLET
Coolant TypeAIR
Muffler DesignSTRAIGHT THROUGH
Outlet Inside Diameter1.926 INCHES MINIMUM AND 1.946 INCHES MAXIMUM FIRST OUTLET IN
Overall Diameter4.000 INCHES NOMINAL IN
Outlet Outside Diameter1.975 INCHES MINIMUM AND 1.995 INCHES MAXIMUM FIRST OUTLET IN
Surface TreatmentALUMINUM
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Inlet Inside Diameter2.005 INCHES MINIMUM AND 2.025 INCHES MAXIMUM SINGLE INLET IN
Outlet Connection TypeUNTHREADED FIRST OUTLET
Inlet Outside Diameter2.054 INCHES MINIMUM AND 2.074 INCHES MAXIMUM SINGLE INLET IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5950-00-503-0632136BT INTERCHANGEABLE
Transformer,power
Superior Electric Holding Group Llc Div Specialty Product Technologies
5340-00-597-6074BACS12B-2 INTERCHANGEABLE
Fastener,flare Lock
The Boeing Company Div Defense
5961-01-099-0082698-1 INTERCHANGEABLE
Rectifier,semiconductor Device,u
Micro Uspd Inc
4320-01-310-644721317 INTERCHANGEABLE
Plate Assembly,balance
Eaton Corporation Div Eaton Fluid Power
5915-01-361-7699A3060816-011 INTERCHANGEABLE
Filter,band Pass
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
C0JZ5230A Ford Motor Company (USA)
ABT6981 Brighton Cromwell Llc (USA)
298-5085-92 Rexworks Inc (USA)
C0JZ5230A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
T-6981 PRIMARY Cummins Filtration Inc. (USA)
6981 Cummins Filtration Inc. (USA)
ABT6981 Ar Bee Corp (USA)
Related Parts
5950-00-503-0632INTERCHANGEABLE
TRANSFORMER,POWER
136BT
5340-00-597-6074INTERCHANGEABLE
FASTENER,FLARE LOCK
BACS12B-2
5961-01-099-0082INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
698-1
4320-01-310-6447INTERCHANGEABLE
PLATE ASSEMBLY,BALANCE
21317
5915-01-361-7699INTERCHANGEABLE
FILTER,BAND PASS
A3060816-011

Frequently Asked Questions

What is NSN 2990-00-234-3041?

NSN 2990-00-234-3041 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 2990-00-234-3041?

NSN 2990-00-234-3041 has 7 cross-referenced part numbers: C0JZ5230A (Ford Motor Company), ABT6981 (Brighton Cromwell Llc), 298-5085-92 (Rexworks Inc), C0JZ5230A (Ford Motor Co Ford Parts and Service Div Government Part Sales), T-6981 (Cummins Filtration Inc.) and 2 more.

What NSN replaces 2990-00-234-3041?

There are 5 known substitutes for 2990-00-234-3041: 5950-00-503-0632, 5340-00-597-6074, 5961-01-099-0082 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-6981?

Key specifications for T-6981: Body Shape: ROUND; Design Type: DRY; Operating Position: HORIZONTAL; Outlet Location: CENTRALLY LOCATED IN END SECTION OF BODY. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com