Fan, Centrifugal4140-01-565-3744

NSN 4140-01-565-3744 · NIIN 015653744 · Part number 5251 2002

Airtherm Mfg Co · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 00827

Government record, cited

NSN 4140-01-565-3744 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-565-3744. Manufacturer of record part number: 5251 2002.

Also searched as 4140-01-565-3744 · 4140015653744 · NIIN 015653744 · 01-565-3744 · FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 00827 · 5251 2002 · 24087-512-0206 PC 4

Nearby stock numbers ← 4140-01-565-3422 Fan, Centrifugal · 4140-01-565-4330 Fan Assembly, Centrifugal →

Features

Fan,centrifugal — FSC 4140
Style Designator: FIXED, DUAL IMPELLER, RECTANGULAR OUTLET
2 manufacturer part numbers on file
Manufacturer of record: Airtherm Mfg Co

Identification

NSN: 4140-01-565-3744
NIIN: 015653744
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: 5251 2002
Manufacturer: Airtherm Mfg Co

General Description

The Fan,centrifugal, cataloged under National Stock Number 4140-01-565-3744, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Airtherm Mfg Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4140-01-565-3744
Primary Part Number	5251 2002
Item Name	Fan,centrifugal
FSC / FSG	4140 / 41 — Fans, Air Circulators, and Blower Equipment
Manufacturer	Airtherm Mfg Co
Status	ACTIVE
Style Designator	FIXED, DUAL IMPELLER, RECTANGULAR OUTLET

Lifecycle & Compliance

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

Cross-Reference Index

Part Number	Manufacturer
5251 2002 PRIMARY	Airtherm Mfg Co (USA)
24087-512-0206 PC 4	Imeco Inc (USA)

Frequently Asked Questions

What is NSN 4140-01-565-3744?

NSN 4140-01-565-3744 is a Fan,centrifugal, manufactured by Airtherm Mfg Co, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.

What part numbers are listed for NSN 4140-01-565-3744?

NSN 4140-01-565-3744 has 2 manufacturer part numbers on file: 5251 2002 (Airtherm Mfg Co), 24087-512-0206 PC 4 (Imeco Inc).

What are the specifications of 5251 2002?

Key specifications for 5251 2002: Style Designator: FIXED, DUAL IMPELLER, RECTANGULAR OUTLET; Part Name Assigned by Controlling Agency: BLOWER FAN; End Item Identification: FAN COIL UNIT CEILING MOUNT TYPE RS(A08), RS(A09). 1 specification is documented in the U.S. Government catalog.

Is NSN 4140-01-565-3744 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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