PartsTable TECHNICAL DATA SHEET

NSN 2990-01-307-9381Government record, cited

Muffler, Intake2990-01-307-9381

NSN 2990-01-307-9381 · NIIN 013079381 · Part number 4539322-801

Bae Systems Hagglunds Aktiebolag · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE AC90N

Government record, cited

NSN 2990-01-307-9381 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-307-9381. Manufacturer of record part number: 4539322-801.

Also searched as 2990-01-307-9381 · 2990013079381 · NIIN 013079381 · 01-307-9381 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE AC90N · 4539322-801 · 94522-991 · 4539322

Nearby stock numbers ← 2990-01-307-9370 Pipe, Exhaust · 2990-01-308-0571 →

Features

Muffler,intake — FSC 2990
1 manufacturer part number on file
Manufacturer of record: Bae Systems Hagglunds Aktiebolag

Identification

NSN: 2990-01-307-9381
NIIN: 013079381
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 4539322-801
Manufacturer: Bae Systems Hagglunds Aktiebolag

General Description

The Muffler,intake, cataloged under National Stock Number 2990-01-307-9381, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Bae Systems Hagglunds Aktiebolag. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Muffler,intake
FSC / FSG	2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29)
Manufacturers	Bae Systems Hagglunds Aktiebolag (CAGE AC90N)

Technical Specifications

Parameter	Value
NSN	2990-01-307-9381
Primary Part Number	4539322-801
Item Name	Muffler,intake
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Bae Systems Hagglunds Aktiebolag
Status	ACTIVE

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
4539322-801	Bae Systems Hagglunds Aktiebolag (SWE)

Reference documents

Reference	Meaning
94522-991	3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds
4539322-801	5/9 Secondary reference Bae Systems Hagglunds Ab
4539322	5/9 Secondary reference Bae Systems Hagglunds Ab

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 2990-01-307-9381?

NSN 2990-01-307-9381 is a Muffler,intake, manufactured by Bae Systems Hagglunds Aktiebolag, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-307-9381?

NSN 2990-01-307-9381 has 1 manufacturer part number on file: 4539322-801 (Bae Systems Hagglunds Aktiebolag).

Is NSN 2990-01-307-9381 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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