Engine, Diesel2815-01-233-5781

NSN 2815-01-233-5781 · NIIN 012335781 · Part number D399B-TA CCW PORT

Caterpillar Inc Div Caterpillar Defense · FSC 2815 — Diesel Engines and Components · FSG 28 — Engines, Turbines, and Components · CAGE 11083

Government record, cited

NSN 2815-01-233-5781 — this item is cataloged by the U.S. Government under National Stock Number 2815-01-233-5781. Manufacturer of record part number: D399B-TA CCW PORT.

Also searched as 2815-01-233-5781 · 2815012335781 · NIIN 012335781 · 01-233-5781 · FSC 2815 Diesel Engines and Components · CAGE 11083 · D399B-TA CCW PORT · 3N1198

Nearby stock numbers ← 2815-01-233-5514 · 2815-01-233-5782 Engine, Diesel →

Features

Engine,diesel — FSC 2815
2 manufacturer part numbers on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2815-01-233-5781
NIIN: 012335781
FSC: 2815 — Diesel Engines and Components
FSG: 28 — Engines, Turbines, and Components
Primary part number: D399B-TA CCW PORT
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Engine,diesel, cataloged under National Stock Number 2815-01-233-5781, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Engine,diesel
FSC / FSG	2815 — Diesel Engines and Components (FSG 28)
Manufacturers	Caterpillar Inc Div Caterpillar Defense (CAGE 11083)

Technical Specifications

Parameter	Value
NSN	2815-01-233-5781
Primary Part Number	D399B-TA CCW PORT
Item Name	Engine,diesel
FSC / FSG	2815 / 28 — Diesel Engines and Components
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-606-60233N1198 POSSIBLE MATCH

VALVE,REGULATING,TEMPERATURE

Possible match (shared part number)Link-Belt Cranes, L.p., Lllp

Cross-Reference Index

Part Number	Manufacturer
3N1198	Caterpillar Inc Div Caterpillar Defense (USA)
D399B-TA CCW PORT PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Related Parts

4820-01-606-6023POSSIBLE MATCH

VALVE,REGULATING,TEMPERATURE

3N1198

Frequently Asked Questions

What is NSN 2815-01-233-5781?

NSN 2815-01-233-5781 is a Engine,diesel, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815, Diesel Engines and Components. Status: active.

What part numbers are listed for NSN 2815-01-233-5781?

NSN 2815-01-233-5781 has 2 manufacturer part numbers on file: 3N1198 (Caterpillar Inc Div Caterpillar Defense), D399B-TA CCW PORT (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 2815-01-233-5781?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-606-6023. Verify interchangeability with system specifications before substitution.

Is NSN 2815-01-233-5781 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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