PartsTable TECHNICAL DATA SHEET
NSN 2990-01-480-7345Government record, cited

Muffler, Exhaust2990-01-480-7345

NSN 2990-01-480-7345 · NIIN 014807345 · Part number 21597-N
Cummins Filtration Inc. · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 76700
Government record, cited
NSN 2990-01-480-7345 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-480-7345. Manufacturer of record part number: 21597-N.
Also searched as  2990-01-480-7345 · 2990014807345 · NIIN 014807345 · 01-480-7345 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 76700 · 21597-N
Nearby stock numbers  ·
Features
  • Muffler,exhaust — FSC 2990
  • Operating Position: UNIVERSAL
  • Inlet Location: CENTERED ON END OF BODY
  • Coolant Type: AIR
  • Design Type: DRY
  • Inlet Connection Type: UNTHREADED SINGLE INLET
  • Body Shape: ROUND
  • Outlet Connection Type: UNTHREADED FIRST OUTLET
Identification
  • NSN: 2990-01-480-7345
  • NIIN: 014807345
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 21597-N
  • Manufacturer: Cummins Filtration Inc.
General Description

The Muffler,exhaust, cataloged under National Stock Number 2990-01-480-7345, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Cummins Filtration Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-480-7345
Primary Part Number21597-N
Item NameMuffler,exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerCummins Filtration Inc.
StatusACTIVE
Operating PositionUNIVERSAL
Inlet LocationCENTERED ON END OF BODY
Coolant TypeAIR
Design TypeDRY
Inlet Connection TypeUNTHREADED SINGLE INLET
Body ShapeROUND
Outlet Connection TypeUNTHREADED FIRST OUTLET
Outlet LocationCENTERED ON END OF BODY
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
21597-N PRIMARY Cummins Filtration Inc. (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.
2990-00-096-8607
CONTROL ASSEMBLY,PUSH-PULL
2990-00-390-3445
CRANK,HAND,VEHICULAR
2990-00-459-7255
MUFFLER,EXHAUST
2990-00-459-7255
MUFFLER,EXHAUST
2990-00-536-2962
BLOCK,ADJUSTING SCREW
2990-00-903-8226
MUFFLER,EXHAUST
2990-01-151-5443
CONNECTOR,EXHAUST PIPE
2990-01-151-5443
CONNECTOR,EXHAUST PIPE

Frequently Asked Questions

What is NSN 2990-01-480-7345?

NSN 2990-01-480-7345 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-480-7345?

NSN 2990-01-480-7345 has 1 manufacturer part number on file: 21597-N (Cummins Filtration Inc.).

What are the specifications of 21597-N?

Key specifications for 21597-N: Operating Position: UNIVERSAL; Inlet Location: CENTERED ON END OF BODY; Coolant Type: AIR; Design Type: DRY. 8 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-480-7345 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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