Housing Assembly2520-01-059-7191

NSN 2520-01-059-7191 · NIIN 010597191 · Part number 3S120

Caterpillar Inc Div Caterpillar Defense · FSC 2520 — Vehicular Power Transmission Components · FSG 25 — Vehicular Equipment Components · CAGE 11083

Government record, cited

NSN 2520-01-059-7191 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-059-7191. Manufacturer of record part number: 3S120.

Also searched as 2520-01-059-7191 · 2520010597191 · NIIN 010597191 · 01-059-7191 · FSC 2520 Vehicular Power Transmission Components · CAGE 11083 · 3S120

Nearby stock numbers ← 2520-01-059-7190 Plate · 2520-01-059-7192 Ring →

Features

Housing Assembly — FSC 2520
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2520-01-059-7191
NIIN: 010597191
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 3S120
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Housing Assembly, cataloged under National Stock Number 2520-01-059-7191, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 1 manufacturer part number 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	Housing Assembly
FSC / FSG	2520 — Vehicular Power Transmission Components (FSG 25)
Manufacturers	Caterpillar Inc Div Caterpillar Defense (CAGE 11083)

Technical Specifications

Parameter	Value
NSN	2520-01-059-7191
Primary Part Number	3S120
Item Name	Housing Assembly
FSC / FSG	2520 / 25 — Vehicular Power Transmission Components
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)

⇄ Related Items 1

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

3040-01-185-95683S0120 POSSIBLE MATCH

HOUSING,MECHANICAL DRIVE

Possible match (shared part number)Caterpillar Inc Div Caterpillar Defense

Cross-Reference Index

Part Number	Manufacturer
3S120 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Related Parts

3040-01-185-9568POSSIBLE MATCH

HOUSING,MECHANICAL DRIVE

3S0120

Frequently Asked Questions

What is NSN 2520-01-059-7191?

NSN 2520-01-059-7191 is a Housing Assembly, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.

What part numbers are listed for NSN 2520-01-059-7191?

NSN 2520-01-059-7191 has 1 manufacturer part number on file: 3S120 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 2520-01-059-7191?

1 possible match (shared part number, not a government interchangeability claim): 3040-01-185-9568. Verify interchangeability with system specifications before substitution.

Is NSN 2520-01-059-7191 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). 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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