The Fan,centrifugal, cataloged under National Stock Number 4140-01-522-3865, 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 Rotron Incorporated. Government technical data includes 7 specifications, 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-522-3865 |
| Primary Part Number | 1806-02 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Rotron Incorporated |
| Status | ACTIVE |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Voltage in Volts and Current Type | 208.000 AC |
| Drive Type | DIRECT |
| Prime Mover Type | ELECTRIC MOTOR |
| Electrical Connection Type | CONNECTOR RECEPTACLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1806-02 PRIMARY | Rotron Incorporated (USA) |
| 429-692-00 | Teradyne, Inc. Dba Teradyne Div Assembly Test Division (USA) |
NSN 4140-01-522-3865 is a Fan,centrifugal, manufactured by Rotron Incorporated, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-522-3865 has 2 manufacturer part numbers on file: 1806-02 (Rotron Incorporated), 429-692-00 (Teradyne, Inc. Dba Teradyne Div Assembly Test Division).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-701-8375. Verify interchangeability with system specifications before substitution.
Key specifications for 1806-02: Phase: SINGLE; Frequency in Hertz: 60.0; Inclosure Type: FULLY INCLOSED; Voltage in Volts and Current Type: 208.000 AC. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.