PartsTable TECHNICAL DATA SHEET

NSN 2990-01-372-9229Government record, cited

Muffler, Exhaust2990-01-372-9229

NSN 2990-01-372-9229 · NIIN 013729229 · Part number 15603976

General Motors Llc Dba General Motors Llc · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 7X677

Government record, cited

NSN 2990-01-372-9229 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-372-9229. Manufacturer of record part number: 15603976.

Also searched as 2990-01-372-9229 · 2990013729229 · NIIN 013729229 · 01-372-9229 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 7X677 · 15603976 · 15567709 · 15567709

Nearby stock numbers ← 2990-01-372-9140 Housing Section, Governor, Diesel · 2990-01-372-9598 Manifold, Air Exhaust, Emission →

Features

Muffler,exhaust — FSC 2990
2 manufacturer part numbers on file
Manufacturer of record: General Motors Llc Dba General Motors Llc

Identification

NSN: 2990-01-372-9229
NIIN: 013729229
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 15603976
Manufacturer: General Motors Llc Dba General Motors Llc

General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-372-9229, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is General Motors Llc Dba General Motors Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-01-372-9229
Primary Part Number	15603976
Item Name	Muffler,exhaust
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	General Motors Llc Dba General Motors Llc
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
15603976 PRIMARY	General Motors Llc Dba General Motors Llc (USA)
15567709	General Motors Llc Dba General Motors Llc (USA)

Reference documents

Reference	Meaning
15603976	5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept
15567709	5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept

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 2990-01-372-9229?

NSN 2990-01-372-9229 is a Muffler,exhaust, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-372-9229?

NSN 2990-01-372-9229 has 2 manufacturer part numbers on file: 15603976 (General Motors Llc Dba General Motors Llc), 15567709 (General Motors Llc Dba General Motors Llc).

What are the specifications of 15603976?

Key specifications for 15603976: End Item Identification: GMC 1988-1994 SP 4X2 TRUCK MODEL CC30903. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-372-9229 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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