PartsTable TECHNICAL DATA SHEET
NSN 2990-01-656-7352Government record, cited

Muffler, Exhaust2990-01-656-7352

NSN 2990-01-656-7352 · NIIN 016567352 · Part number 378-6752
Quinn Company · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 4C7B1
Government record, cited
NSN 2990-01-656-7352 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-656-7352. Manufacturer of record part number: 378-6752.
Also searched as  2990-01-656-7352 · 2990016567352 · NIIN 016567352 · 01-656-7352 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 4C7B1 · 378-6752
Nearby stock numbers  ·
Features
  • Muffler,exhaust — FSC 2990
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Quinn Company
Identification
  • NSN: 2990-01-656-7352
  • NIIN: 016567352
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 378-6752
  • Manufacturer: Quinn Company
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-656-7352, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Quinn Company. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-656-7352
Primary Part Number378-6752
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerQuinn Company
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
378-6752 Caterpillar Inc Div Caterpillar Defense (USA)
378-6752 PRIMARY Quinn Company (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 2990-01-656-7352?

NSN 2990-01-656-7352 is a Muffler,exhaust, manufactured by Quinn Company, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-656-7352?

NSN 2990-01-656-7352 has 2 manufacturer part numbers on file: 378-6752 (Caterpillar Inc Div Caterpillar Defense), 378-6752 (Quinn Company).

What are the specifications of 378-6752?

Key specifications for 378-6752: Special Features: AIR INLET AND EXHAUST SYSTEM; Part Name Assigned by Controlling Agency: MUFFLER AS; End Item Identification: COMPACT TRACK. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-656-7352 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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