PartsTable TECHNICAL DATA SHEET
NSN 2990-01-103-4002Government record, cited

Muffler, Exhaust2990-01-103-4002

NSN 2990-01-103-4002 · NIIN 011034002 · Part number H247510
Case J I Co · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 15667
Government record, cited
NSN 2990-01-103-4002 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-103-4002. Manufacturer of record part number: H247510.
Also searched as  2990-01-103-4002 · 2990011034002 · NIIN 011034002 · 01-103-4002 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 15667 · H247510 · 9241M
Nearby stock numbers  ·
Features
  • Muffler,exhaust — FSC 2990
  • Operating Position: HORIZONTAL
  • Inlet Location: CENTRALLY LOCATED IN TOP
  • Coolant Type: AIR
  • Design Type: DRY
  • Overall Diameter: 6.170 INCHES NOMINAL IN
  • Inlet Thread Location: INTERNAL SINGLE INLET
  • Baffle Quantity: 1
Identification
  • NSN: 2990-01-103-4002
  • NIIN: 011034002
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: H247510
  • Manufacturer: Case J I Co
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-103-4002, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Case J I Co. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 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
NSN2990-01-103-4002
Primary Part NumberH247510
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerCase J I Co
StatusACTIVE
Operating PositionHORIZONTAL
Inlet LocationCENTRALLY LOCATED IN TOP
Coolant TypeAIR
Design TypeDRY
Overall Diameter6.170 INCHES NOMINAL IN
Inlet Thread LocationINTERNAL SINGLE INLET
Baffle Quantity1
Muffler DesignBAFFLE
Inlet Connection TypeTHREADED SINGLE INLET
Body ShapeROUND
Inlet Thread Size1-5/8-12 SINGLE INLET
Surface TreatmentPAINT
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
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
9241M Cummins Filtration Inc. (USA)
H247510 PRIMARY Case J I Co (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 2990-01-103-4002?

NSN 2990-01-103-4002 is a Muffler,exhaust, manufactured by Case J I Co, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-103-4002?

NSN 2990-01-103-4002 has 2 manufacturer part numbers on file: 9241M (Cummins Filtration Inc.), H247510 (Case J I Co).

What are the specifications of H247510?

Key specifications for H247510: Operating Position: HORIZONTAL; Inlet Location: CENTRALLY LOCATED IN TOP; Coolant Type: AIR; Design Type: DRY. 13 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-103-4002 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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