PartsTable TECHNICAL DATA SHEET

NSN 2990-00-570-9608Government record, cited

Muffler, Exhaust2990-00-570-9608

NSN 2990-00-570-9608 · NIIN 005709608 · Part number 2944

Maremont Corp · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 76110

Government record, cited

NSN 2990-00-570-9608 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-570-9608. Manufacturer of record part number: 2944.

Also searched as 2990-00-570-9608 · 2990005709608 · NIIN 005709608 · 00-570-9608 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 76110 · 2944 · 34595 · TD4

Nearby stock numbers ← 2990-00-570-9607 Pipe, Exhaust · 2990-00-570-9609 Pipe, Exhaust →

Features

Muffler,exhaust — FSC 2990
Operating Position: UNIVERSAL
Inlet Location: OFFSET LOCATED ON END OF BODY
Coolant Type: AIR
Design Type: DRY
Overall Diameter: 6.125 INCHES NOMINAL IN
Inlet Projection Length: 2.500 INCHES NOMINAL SINGLE INLET IN
Inlet Connection Type: UNTHREADED SINGLE INLET

Identification

NSN: 2990-00-570-9608
NIIN: 005709608
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 2944
Manufacturer: Maremont Corp

General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-00-570-9608, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Maremont Corp. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-00-570-9608
Primary Part Number	2944
Item Name	Muffler,exhaust
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Maremont Corp
Status	ACTIVE
Operating Position	UNIVERSAL
Inlet Location	OFFSET LOCATED ON END OF BODY
Coolant Type	AIR
Design Type	DRY
Overall Diameter	6.125 INCHES NOMINAL IN
Inlet Projection Length	2.500 INCHES NOMINAL SINGLE INLET IN
Inlet Connection Type	UNTHREADED SINGLE INLET
Body Shape	ROUND
Inlet Inside Diameter	2.005 INCHES MINIMUM AND 2.025 INCHES MAXIMUM SINGLE INLET IN
Material	STEEL LOCATION NOT OTHERWISE SPECIFIED
Outlet Projection Length	2.500 INCHES NOMINAL FIRST OUTLET IN
Outlet Connection Type	UNTHREADED FIRST OUTLET
Outlet Location	OFFSET LOCATED ON END OF BODY

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 9

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5120-01-109-47885120-01-109-4788 POSSIBLE MATCH

WRENCH,TAP AND REAMER

Possible match (shared part number)General Services Administration Federal Supply Service

5305-01-117-5909 POSSIBLE MATCH

SCREW,MACHINE

Possible match (shared part number)

3510-01-142-06563-04595 POSSIBLE MATCH

PANEL,FRONT,DRYER

Possible match (shared part number)Maytag Corporation Dba Maytag Appliancessales

5920-01-174-2567HPF-EE POSSIBLE MATCH

FUSEHOLDER,EXTRACTOR POST

Possible match (shared part number)Cooper Bussmann, Llc Dba Cooper Industries

5365-01-186-774034595 POSSIBLE MATCH

PLUG,MACHINE THREAD

Possible match (shared part number)Moog Inc. Dba Ampac-Isp Corp

5910-01-254-8944 POSSIBLE MATCH

CAPACITOR,FIXED,MICA DIELECTRIC

Possible match (shared part number)

3020-01-294-18519240-032-44 POSSIBLE MATCH

PULLEY,FLAT

Possible match (shared part number)Naval Sea Systems Command Logistics Support Engineering Activity

5120-01-518-1940 POSSIBLE MATCH

WRENCH,TAP AND REAMER

Possible match (shared part number)

6145-01-691-7019TD-4 POSSIBLE MATCH

CABLE,RADIO FREQUENCY

Possible match (shared part number)Cospolich Inc.

Cross-Reference Index

Part Number	Manufacturer
TD4	Maremont Corp (USA)
2944 PRIMARY	Maremont Corp (USA)

Reference documents

Reference	Meaning
34595	5/9 Secondary reference Bomag Usa Sub of United Dominion Industries Ltd

Related Parts

5120-01-109-4788POSSIBLE MATCH

WRENCH,TAP AND REAMER

5120-01-109-4788

5305-01-117-5909POSSIBLE MATCH

SCREW,MACHINE

3510-01-142-0656POSSIBLE MATCH

PANEL,FRONT,DRYER

3-04595

5920-01-174-2567POSSIBLE MATCH

FUSEHOLDER,EXTRACTOR POST

HPF-EE

5365-01-186-7740POSSIBLE MATCH

PLUG,MACHINE THREAD

34595

5910-01-254-8944POSSIBLE MATCH

CAPACITOR,FIXED,MICA DIELECTRIC

3020-01-294-1851POSSIBLE MATCH

PULLEY,FLAT

9240-032-44

5120-01-518-1940POSSIBLE MATCH

WRENCH,TAP AND REAMER

6145-01-691-7019POSSIBLE MATCH

CABLE,RADIO FREQUENCY

TD-4

Frequently Asked Questions

What is NSN 2990-00-570-9608?

NSN 2990-00-570-9608 is a Muffler,exhaust, manufactured by Maremont Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-00-570-9608?

NSN 2990-00-570-9608 has 2 manufacturer part numbers on file: TD4 (Maremont Corp), 2944 (Maremont Corp).

What NSN replaces 2990-00-570-9608?

9 possible matches (shared part number, not a government interchangeability claim): 5120-01-109-4788, 5305-01-117-5909, 3510-01-142-0656. Verify interchangeability with system specifications before substitution.

What are the specifications of 2944?

Key specifications for 2944: Operating Position: UNIVERSAL; Inlet Location: OFFSET LOCATED ON END OF BODY; Coolant Type: AIR; Design Type: DRY. 13 specifications are documented in the U.S. Government catalog.

Is NSN 2990-00-570-9608 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

PartsTable Design LLC · partstable.com