Guard, Muffler-Exhaust Pipe, Nonai 2990-01-649-5557 NSN 2990-01-649-5557 · NIIN 016495557 · Part number 4156572
Oshkosh Defense Llc · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 75Q65
NSN 2990-01-649-5557 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-649-5557. Manufacturer of record part number: 4156572 .
Also searched as
2990-01-649-5557 ·
2990016495557 ·
NIIN 016495557 ·
01-649-5557 ·
FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 75Q65 · 4156572
Nearby stock numbers
← 2990-01-649-4989 Muffler, Exhaust
·
2990-01-649-5732 Guard, Muffler-Exhaust Pipe, Nonai →
Features
Guard,muffler-Exhaust Pipe,nonai — FSC 2990 1 manufacturer part number on file Manufacturer of record: Oshkosh Defense Llc
Identification
NSN: 2990-01-649-5557
NIIN: 016495557
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 4156572
Manufacturer: Oshkosh Defense Llc
General Description
The Guard,muffler-Exhaust Pipe,nonai, cataloged under National Stock Number 2990-01-649-5557, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Oshkosh Defense Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name Guard,muffler-Exhaust Pipe,nonai FSC / FSG 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) Manufacturers Oshkosh Defense Llc (CAGE 75Q65)
Technical Specifications
Parameter Value NSN 2990-01-649-5557 Primary Part Number 4156572 Item Name Guard,muffler-Exhaust Pipe,nonai FSC / FSG 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft Manufacturer Oshkosh Defense 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
4156572 PRIMARY Oshkosh Defense Llc (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 2990-01-649-5557?
NSN 2990-01-649-5557 is a Guard,muffler-Exhaust Pipe,nonai, manufactured by Oshkosh Defense Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
What part numbers are listed for NSN 2990-01-649-5557?
NSN 2990-01-649-5557 has 1 manufacturer part number on file: 4156572 (Oshkosh Defense Llc).
Is NSN 2990-01-649-5557 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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