Parts Kit, Mechanical Transmissio2520-01-643-7220

NSN 2520-01-643-7220 · NIIN 016437220 · Part number 374-9163

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

Government record, cited

NSN 2520-01-643-7220 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-643-7220. Manufacturer of record part number: 374-9163.

Also searched as 2520-01-643-7220 · 2520016437220 · NIIN 016437220 · 01-643-7220 · FSC 2520 Vehicular Power Transmission Components · CAGE 11083 · 374-9163

Nearby stock numbers ← 2520-01-643-7115 Universal Joint, Vehicular · 2520-01-643-7232 Slave Cylinder, Clutch →

Features

Parts Kit,mechanical Transmissio — FSC 2520
Component Quantity: 9
End Item Source: 11083
Component Document Origin: INDUSTRIAL
Document Source: 11083
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2520-01-643-7220
NIIN: 016437220
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 374-9163
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Parts Kit,mechanical Transmissio, cataloged under National Stock Number 2520-01-643-7220, 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. Government technical data includes 4 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

Parameter	Value
NSN	2520-01-643-7220
Primary Part Number	374-9163
Item Name	Parts Kit,mechanical Transmissio
FSC / FSG	2520 / 25 — Vehicular Power Transmission Components
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
Component Quantity	9
End Item Source	11083
Component Document Origin	INDUSTRIAL
Document Source	11083

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
374-9163 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Frequently Asked Questions

What is NSN 2520-01-643-7220?

NSN 2520-01-643-7220 is a Parts Kit,mechanical Transmissio, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.

What part numbers are listed for NSN 2520-01-643-7220?

NSN 2520-01-643-7220 has 1 manufacturer part number on file: 374-9163 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 374-9163?

Key specifications for 374-9163: Component Quantity: 9; End Item Source: 11083; Component Document Origin: INDUSTRIAL; Document Source: 11083. 4 specifications are documented in the U.S. Government catalog.

Is NSN 2520-01-643-7220 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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