Vane, Converter2520-01-154-6439

NSN 2520-01-154-6439 · NIIN 011546439 · Part number 1T1331

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

Government record, cited

NSN 2520-01-154-6439 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-154-6439. Manufacturer of record part number: 1T1331.

Also searched as 2520-01-154-6439 · 2520011546439 · NIIN 011546439 · 01-154-6439 · FSC 2520 Vehicular Power Transmission Components · CAGE 11083 · 1T1331 · 206497-F

Nearby stock numbers ← 2520-01-154-6384 · 2520-01-154-6540 Cap, Dust, Propeller Shaft →

Features

Vane,converter — FSC 2520
2 manufacturer part numbers on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2520-01-154-6439
NIIN: 011546439
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 1T1331
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Vane,converter, cataloged under National Stock Number 2520-01-154-6439, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Vane,converter
FSC / FSG	2520 — Vehicular Power Transmission Components (FSG 25)
Manufacturers	Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208)

Technical Specifications

Parameter	Value
NSN	2520-01-154-6439
Primary Part Number	1T1331
Item Name	Vane,converter
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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
1T1331 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)
206497-F	Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)

No interchangeability data on file.

Other items in FSC 2520 — Vehicular Power Transmission Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2520-00-000-3976

2520-00-000-3976 · Item name not on file

2520-00-000-8852

2520-00-000-8852 · Item name not on file

2520-00-000-9292

2520-00-000-9292 · Item name not on file

2520-00-001-0011

2520-00-001-0011 · Item name not on file

2520-00-001-3397

2520-00-001-3397 · Item name not on file

2520-00-001-3425

2520-00-001-3425 · Item name not on file

2520-00-001-3440

ROLLER,CENTER

2520-00-001-3441

2520-00-001-3441 · Item name not on file

Frequently Asked Questions

What is NSN 2520-01-154-6439?

NSN 2520-01-154-6439 is a Vane,converter, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.

What part numbers are listed for NSN 2520-01-154-6439?

NSN 2520-01-154-6439 has 2 manufacturer part numbers on file: 1T1331 (Caterpillar Inc Div Caterpillar Defense), 206497-F (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

Is NSN 2520-01-154-6439 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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