PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-8434Muffler,exhaust

Cummins Filtration Inc. · NSN 2990-00-851-7388 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-851-7388 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-851-7388. Primary manufacturer part number: T-8434.
Features
  • Muffler,exhaust — FSC 2990
  • Outlet Location: CENTERED ON END OF BODY
  • Body Shape: ROUND
  • Operating Position: UNIVERSAL
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
  • Outlet Projection Length: 4.375 INCHES NOMINAL FIRST OUTLET IN
  • Inlet Location: CENTERED ON END OF BODY
  • Inlet Connection Type: UNTHREADED SINGLE INLET
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-851-7388, 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 17 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
ParameterValue
NSN2990-00-851-7388
Primary Part NumberT-8434
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerCummins Filtration Inc.
StatusACTIVE
Outlet LocationCENTERED ON END OF BODY
Body ShapeROUND
Operating PositionUNIVERSAL
Outlet Connection TypeUNTHREADED FIRST OUTLET
Outlet Projection Length4.375 INCHES NOMINAL FIRST OUTLET IN
Inlet LocationCENTERED ON END OF BODY
Inlet Connection TypeUNTHREADED SINGLE INLET
Outlet Outside Diameter3.062 INCHES NOMINAL FIRST OUTLET IN
Inlet Outside Diameter3.062 INCHES NOMINAL SINGLE INLET IN
Coolant TypeAIR
Muffler DesignSTRAIGHT THROUGH W/BAFFLE
Design TypeDRY
Inlet Projection Length4.375 INCHES NOMINAL SINGLE INLET IN
Overall Diameter8.500 INCHES NOMINAL IN
Surface TreatmentPAINT HEAT RESISTANT
Baffle Quantity1
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6145-00-011-2390 INTERCHANGEABLE
Cable,special Purpose,electrical
4030-00-202-40795B110-1 INTERCHANGEABLE
Anchor,guy
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5120-00-221-7960 INTERCHANGEABLE
Handle,socket Wrench
3030-00-224-79068434 INTERCHANGEABLE
Belt,v
Gates Corporation
5950-00-463-8101 INTERCHANGEABLE
Transformer,power
5950-00-470-9376 INTERCHANGEABLE
Transformer,power
1680-00-510-249943523 INTERCHANGEABLE
Gearbox Assembly,aircraft
Heligear Acquisition Co. Dba Northstar Aerospace, Inc.
6520-00-584-269988-0394 INTERCHANGEABLE
Elevator,periosteal
Boss Instruments, Limited Inc
5310-00-596-65628434 INTERCHANGEABLE
Nut,plain,hexagon
Triumph Engine Control Systems Llc
5845-00-757-327243523 INTERCHANGEABLE
Board Assembly
L3harris Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
T-8434 PRIMARY Cummins Filtration Inc. (USA)
43523 Davey Compressor Co Div of Keco Industries Inc (USA)
43523 Jenny Products, Inc (USA)
ABT8434 Ar Bee Corp (USA)
8434 Cummins Filtration Inc. (USA)
ABT8434 Brighton Cromwell Llc (USA)
Related Parts
6145-00-011-2390INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
4030-00-202-4079INTERCHANGEABLE
ANCHOR,GUY
5B110-1
5120-00-221-7960INTERCHANGEABLE
HANDLE,SOCKET WRENCH
3030-00-224-7906INTERCHANGEABLE
BELT,V
8434
5950-00-463-8101INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-470-9376INTERCHANGEABLE
TRANSFORMER,POWER
1680-00-510-2499INTERCHANGEABLE
GEARBOX ASSEMBLY,AIRCRAFT
43523
6520-00-584-2699INTERCHANGEABLE
ELEVATOR,PERIOSTEAL
88-0394
5310-00-596-6562INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8434
5845-00-757-3272INTERCHANGEABLE
BOARD ASSEMBLY
43523
5977-01-188-4589INTERCHANGEABLE
ELECTRODE
435-23
5315-01-257-7512INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
EA8434

Frequently Asked Questions

What is NSN 2990-00-851-7388?

NSN 2990-00-851-7388 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 2990-00-851-7388?

NSN 2990-00-851-7388 has 6 cross-referenced part numbers: T-8434 (Cummins Filtration Inc.), 43523 (Davey Compressor Co Div of Keco Industries Inc), 43523 (Jenny Products, Inc), ABT8434 (Ar Bee Corp), 8434 (Cummins Filtration Inc.) and 1 more.

What NSN replaces 2990-00-851-7388?

There are 12 known substitutes for 2990-00-851-7388: 6145-00-011-2390, 4030-00-202-4079, 5120-00-221-7960 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-8434?

Key specifications for T-8434: Outlet Location: CENTERED ON END OF BODY; Body Shape: ROUND; Operating Position: UNIVERSAL; Outlet Connection Type: UNTHREADED FIRST OUTLET. 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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