PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2873Muffler,exhaust

Ap Parts Co Industrial Sales Div · NSN 2990-01-020-7111 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-020-7111 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-020-7111. Primary manufacturer part number: 2873.
Features
  • Muffler,exhaust — FSC 2990
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Inlet Projection Length: 2.875 INCHES NOMINAL SINGLE INLET IN
  • Inlet Location: OFFSET IN END SECTION OF BODY
  • Outlet Outside Diameter: 2.625 INCHES NOMINAL FIRST OUTLET IN
  • Design Type: DRY
  • Coolant Type: AIR
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
Applications
  • Applications requiring Steel Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-020-7111, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Ap Parts Co Industrial Sales Div. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN2990-01-020-7111
Primary Part Number2873
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerAp Parts Co Industrial Sales Div
StatusACTIVE
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Inlet Projection Length2.875 INCHES NOMINAL SINGLE INLET IN
Inlet LocationOFFSET IN END SECTION OF BODY
Outlet Outside Diameter2.625 INCHES NOMINAL FIRST OUTLET IN
Design TypeDRY
Coolant TypeAIR
Outlet Connection TypeUNTHREADED FIRST OUTLET
Outlet Projection Length2.844 INCHES NOMINAL FIRST OUTLET IN
Surface TreatmentZINC
Inlet Connection TypeUNTHREADED SINGLE INLET
Overall Diameter6.500 INCHES NOMINAL IN
Outlet Inside Diameter2.500 INCHES NOMINAL FIRST OUTLET IN
Muffler DesignBAFFLE
Body ShapeROUND
Outlet LocationOFFSET IN END SECTION OF BODY
Inlet Inside Diameter2.500 INCHES NOMINAL SINGLE INLET IN
Inlet Outside Diameter2.625 INCHES NOMINAL SINGLE INLET IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-032-9442 INTERCHANGEABLE
Puller,mechanical
5306-00-206-8868202873 INTERCHANGEABLE
Bolt,hook
Clark Material Handling Company
2530-00-238-5395J3207695 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Chrysler Corp Engine and Components Sales Diversified Products Div
5935-00-414-1154MMM5PS INTERCHANGEABLE
Connector Body,receptacle,electr
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
4730-00-495-2621 INTERCHANGEABLE
Coupling,pipe
6210-00-514-2637287-3A INTERCHANGEABLE
Control,electric Light
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
5330-00-606-5461111759 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
1720-00-613-9555403688-2 INTERCHANGEABLE
Sling Assy
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
4820-00-632-61502873 INTERCHANGEABLE
Valve,gate
Hydro-Aire Aerospace Corp
5325-00-637-8054MS35489-53 INTERCHANGEABLE
Grommet,nonmetallic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
2873 Ap Parts Co Industrial Sales Div (USA)
4036882 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
3893467 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
DFS-116M Harvard Industries (USA)
Related Parts
5120-00-032-9442INTERCHANGEABLE
PULLER,MECHANICAL
5306-00-206-8868INTERCHANGEABLE
BOLT,HOOK
202873
2530-00-238-5395INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
J3207695
5935-00-414-1154INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
MMM5PS
4730-00-495-2621INTERCHANGEABLE
COUPLING,PIPE
6210-00-514-2637INTERCHANGEABLE
CONTROL,ELECTRIC LIGHT
287-3A
5330-00-606-5461INTERCHANGEABLE
GASKET
111759
1720-00-613-9555INTERCHANGEABLE
SLING ASSY
403688-2
4820-00-632-6150INTERCHANGEABLE
VALVE,GATE
2873
5325-00-637-8054INTERCHANGEABLE
GROMMET,NONMETALLIC
MS35489-53
5950-00-646-1629INTERCHANGEABLE
TRANSFORMER,POWER
601618
5905-01-085-9649INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
2873

Frequently Asked Questions

What is NSN 2990-01-020-7111?

NSN 2990-01-020-7111 is a Muffler,exhaust, manufactured by Ap Parts Co Industrial Sales Div, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-020-7111?

NSN 2990-01-020-7111 has 4 cross-referenced part numbers: 2873 (Ap Parts Co Industrial Sales Div), 4036882 (Chrysler Realty Company Llc Dba Daimler Chrysler), 3893467 (Chrysler Realty Company Llc Dba Daimler Chrysler), DFS-116M (Harvard Industries).

What NSN replaces 2990-01-020-7111?

There are 12 known substitutes for 2990-01-020-7111: 5120-00-032-9442, 5306-00-206-8868, 2530-00-238-5395 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2873?

Key specifications for 2873: Material: STEEL LOCATION NOT OTHERWISE SPECIFIED; Inlet Projection Length: 2.875 INCHES NOMINAL SINGLE INLET IN; Inlet Location: OFFSET IN END SECTION OF BODY; Outlet Outside Diameter: 2.625 INCHES NOMINAL FIRST OUTLET IN. 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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