PartsTable TECHNICAL DATA SHEET
NSN 2990-01-694-8580Government record, cited

Pipe, Exhaust2990-01-694-8580

NSN 2990-01-694-8580 · NIIN 016948580 · Part number 6I-0385
Caterpillar Inc Div Caterpillar Defense · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 11083
Government record, cited
NSN 2990-01-694-8580 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-694-8580. Manufacturer of record part number: 6I-0385.
Also searched as  2990-01-694-8580 · 2990016948580 · NIIN 016948580 · 01-694-8580 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 11083 · 6I-0385
Nearby stock numbers  ·
Features
  • Pipe,exhaust — FSC 2990
  • Mounting Hole Quantity: 4
  • Mounting Method: BOLTED
  • Mounting Hole Diameter: 13.8 MILLIMETERS NOMINAL MM
  • Material: IRON CAST
  • Usage Location: EXHAUST PIPE
  • 1 manufacturer part number on file
  • Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
  • NSN: 2990-01-694-8580
  • NIIN: 016948580
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 6I-0385
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Pipe,exhaust, cataloged under National Stock Number 2990-01-694-8580, 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. Government technical data includes 5 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
NSN2990-01-694-8580
Primary Part Number6I-0385
Item NamePipe,exhaust
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Mounting Hole Quantity4
Mounting MethodBOLTED
Mounting Hole Diameter13.8 MILLIMETERS NOMINAL MM
MaterialIRON CAST
Usage LocationEXHAUST PIPE
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
6I-0385 PRIMARY Caterpillar Inc Div Caterpillar Defense (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 2990-01-694-8580?

NSN 2990-01-694-8580 is a Pipe,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 2990-01-694-8580?

NSN 2990-01-694-8580 has 1 manufacturer part number on file: 6I-0385 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 6I-0385?

Key specifications for 6I-0385: Mounting Hole Quantity: 4; Mounting Method: BOLTED; Mounting Hole Diameter: 13.8 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: MANIFOLD EXHAUST. 5 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-694-8580 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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