PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MAM065044Muffler,exhaust

Donaldson Company, Inc. · NSN 2990-01-227-7364 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-227-7364 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-227-7364. Primary manufacturer part number: MAM065044.
Features
  • Muffler,exhaust — FSC 2990
  • Inlet Location: LOCATED NEAR END ON BOTTOM
  • Outlet Location: LOCATED IN CENTER ON END
  • Inlet Outside Diameter: 2.500 INCHES NOMINAL SINGLE INLET IN
  • Overall Diameter: 6.620 INCHES NOMINAL IN
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
  • Body Shape: ROUND
  • Inlet Connection Type: UNTHREADED SINGLE INLET
Applications
  • Applications requiring Steel Alloy Location Not Otherwise Specified construction
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-227-7364, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Donaldson Company, Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN2990-01-227-7364
Primary Part NumberMAM065044
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerDonaldson Company, Inc.
StatusACTIVE
Inlet LocationLOCATED NEAR END ON BOTTOM
Outlet LocationLOCATED IN CENTER ON END
Inlet Outside Diameter2.500 INCHES NOMINAL SINGLE INLET IN
Overall Diameter6.620 INCHES NOMINAL IN
Outlet Connection TypeUNTHREADED FIRST OUTLET
Body ShapeROUND
Inlet Connection TypeUNTHREADED SINGLE INLET
MaterialSTEEL ALLOY LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-154-74182926SEAL INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5935-00-171-3004RE49F461TYPEUG335U INTERCHANGEABLE
Adapter,connector
Naval Ship Systems Command
5935-00-402-1636 INTERCHANGEABLE
Connector,receptacle,electrical
5915-00-485-497311081 INTERCHANGEABLE
Filter,low Pass
Stanford Applied Engineering Inc
5975-00-548-89095182782 INTERCHANGEABLE
Chase Nipple,conduit
Rolls-Royce Solutions America Inc
5820-00-606-7677 INTERCHANGEABLE
Radio Set Subassembly
5305-00-655-7365 INTERCHANGEABLE
Thumbscrew
4720-00-699-90087388116 INTERCHANGEABLE
Hose Assembly,metallic
U S Army Tank Automotive Command Amsta-Im-Mm
5325-00-804-9740 INTERCHANGEABLE
Ring,retaining
5950-00-824-0200152708 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
11081 Donaldson Company, Inc. (USA)
MAM06-5053 Donaldson Company, Inc. (USA)
MAM065044 PRIMARY Donaldson Company, Inc. (USA)
Related Parts
5330-00-154-7418INTERCHANGEABLE
SEAL,PLAIN ENCASED
2926SEAL
5935-00-171-3004INTERCHANGEABLE
ADAPTER,CONNECTOR
RE49F461TYPEUG335U
5935-00-402-1636INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5915-00-485-4973INTERCHANGEABLE
FILTER,LOW PASS
11081
5975-00-548-8909INTERCHANGEABLE
CHASE NIPPLE,CONDUIT
5182782
5820-00-606-7677INTERCHANGEABLE
RADIO SET SUBASSEMBLY
5305-00-655-7365INTERCHANGEABLE
THUMBSCREW
4720-00-699-9008INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
7388116
5325-00-804-9740INTERCHANGEABLE
RING,RETAINING
5950-00-824-0200INTERCHANGEABLE
TRANSFORMER,POWER
152708
5950-00-959-4380INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4320-01-195-3101INTERCHANGEABLE
RING,WEARING
209-2292475PC19

Frequently Asked Questions

What is NSN 2990-01-227-7364?

NSN 2990-01-227-7364 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-227-7364?

NSN 2990-01-227-7364 has 3 cross-referenced part numbers: 11081 (Donaldson Company, Inc.), MAM06-5053 (Donaldson Company, Inc.), MAM065044 (Donaldson Company, Inc.).

What NSN replaces 2990-01-227-7364?

There are 12 known substitutes for 2990-01-227-7364: 5330-00-154-7418, 5935-00-171-3004, 5935-00-402-1636 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MAM065044?

Key specifications for MAM065044: Inlet Location: LOCATED NEAR END ON BOTTOM; Outlet Location: LOCATED IN CENTER ON END; Inlet Outside Diameter: 2.500 INCHES NOMINAL SINGLE INLET IN; Overall Length: 23.250 INCHES NOMINAL IN. 9 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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