Muffler, Exhaust2990-01-538-9592

NSN 2990-01-538-9592 · NIIN 015389592 · Part number ST-800-1818

Marine Muffler Corp · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 64183

Government record, cited

NSN 2990-01-538-9592 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-538-9592. Manufacturer of record part number: ST-800-1818.

Also searched as 2990-01-538-9592 · 2990015389592 · NIIN 015389592 · 01-538-9592 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 64183 · ST-800-1818

Nearby stock numbers ← 2990-01-538-9316 Regulator-Control, Electronic, Eng · 2990-01-538-9958 Pipe, Exhaust →

Features

Muffler,exhaust — FSC 2990
Design Type: JACKETED
Overall Diameter: 20.000 INCHES NOMINAL IN
Body Shape: ROUND
1 manufacturer part number on file
Manufacturer of record: Marine Muffler Corp

Identification

NSN: 2990-01-538-9592
NIIN: 015389592
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: ST-800-1818
Manufacturer: Marine Muffler Corp

General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-538-9592, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Marine Muffler Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-01-538-9592
Primary Part Number	ST-800-1818
Item Name	Muffler,exhaust
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Marine Muffler Corp
Status	ACTIVE
Design Type	JACKETED
Overall Diameter	20.000 INCHES NOMINAL IN
Body Shape	ROUND

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

Cross-Reference Index

Part Number	Manufacturer
ST-800-1818 PRIMARY	Marine Muffler Corp (USA)

No interchangeability data on file.

Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2990-00-001-0001

BLOWER ASSEMBLY

2990-00-001-1248

2990-00-001-1248 · Item name not on file

2990-00-001-1250

2990-00-001-1250 · Item name not on file

2990-00-001-2055

2990-00-001-2055 · Item name not on file

2990-00-001-3498

2990-00-001-3498 · Item name not on file

2990-00-001-3520

2990-00-001-3520 · Item name not on file

2990-00-001-3521

2990-00-001-3521 · Item name not on file

2990-00-001-3522

CAP ASSEMBLY,MUFFLE

Frequently Asked Questions

What is NSN 2990-01-538-9592?

NSN 2990-01-538-9592 is a Muffler,exhaust, manufactured by Marine Muffler Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-538-9592?

NSN 2990-01-538-9592 has 1 manufacturer part number on file: ST-800-1818 (Marine Muffler Corp).

What are the specifications of ST-800-1818?

Key specifications for ST-800-1818: Design Type: JACKETED; Overall Diameter: 20.000 INCHES NOMINAL IN; Overall Length: 18.000 INCHES NOMINAL IN; Body Shape: ROUND. 3 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-538-9592 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.

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