PartsTable TECHNICAL DATA SHEET
NSN 2990-01-457-4580Government record, cited

Bellows Ay Exhaust2990-01-457-4580

NSN 2990-01-457-4580 · NIIN 014574580 · Part number 2187107
Caterpillar Inc Div Caterpillar Defense · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 11083
Government record, cited
NSN 2990-01-457-4580 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-457-4580. Manufacturer of record part number: 2187107.
Also searched as  2990-01-457-4580 · 2990014574580 · NIIN 014574580 · 01-457-4580 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 11083 · 2187107 · 4P-0470 · 126-3572 IT 5
Nearby stock numbers  ·
Features
  • Bellows Ay Exhaust — FSC 2990
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
  • NSN: 2990-01-457-4580
  • NIIN: 014574580
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 2187107
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Bellows Ay Exhaust, cataloged under National Stock Number 2990-01-457-4580, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-457-4580
Primary Part Number2187107
Item NameBellows Ay Exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
2187107 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
126-3572 IT 5 Caterpillar Inc Div Caterpillar Defense (USA)
Reference documents
ReferenceMeaning
4P-0470 5/9 Secondary reference
Caterpillar Inc Div Caterpillar Defense
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
MUFFLER,EXHAUST
2990-00-001-3522
CAP ASSEMBLY,MUFFLE
Related Parts in Engine Accessories
2990-00-001-0001
BLOWER ASSEMBLY
R5139306
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
MUFFLER,EXHAUST
2990-00-001-3522
CAP ASSEMBLY,MUFFLE
636-1-4695

Frequently Asked Questions

What is NSN 2990-01-457-4580?

NSN 2990-01-457-4580 is a Bellows Ay Exhaust, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-457-4580?

NSN 2990-01-457-4580 has 2 manufacturer part numbers on file: 2187107 (Caterpillar Inc Div Caterpillar Defense), 126-3572 IT 5 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 2187107?

Key specifications for 2187107: End Item Identification: STRATEGIC SEALIFT CONVERSION SHIP CLASS. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-457-4580 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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