The Fan,centrifugal, cataloged under National Stock Number 4140-01-266-6818, 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 Twin City Fan Companies Ltd. Dba Tc Axial Div. Government technical data includes 19 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. 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 | 4140-01-266-6818 |
| Primary Part Number | BC-8020-A |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Twin City Fan Companies Ltd. Dba Tc Axial Div |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 1 PEDESTAL AND 8 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Phase | THREE |
| Shaft Bearing Type | SLEEVE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | PARTIALLY INCLOSED |
| Voltage in Volts and Current Type | 440.0 AC |
| Drive Type | BELT |
| Prime Mover Power Rating | 2.000 HORSEPOWER |
| Diameter | 14.562 INCHES NOMINAL IN |
| Discharge Direction | VERTICAL UP |
| Operating Speed at Rated Capacity in RPM | 1800.0 |
| Width | 5.437 INCHES NOMINAL IN |
| Material | STEEL HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 1575.0 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| BC-8020-A PRIMARY | Twin City Fan Companies Ltd. Dba Tc Axial Div (USA) |
NSN 4140-01-266-6818 is a Fan,centrifugal, manufactured by Twin City Fan Companies Ltd. Dba Tc Axial Div, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-266-6818 has 1 manufacturer part number on file: BC-8020-A (Twin City Fan Companies Ltd. Dba Tc Axial Div).
1 possible match (shared part number, not a government interchangeability claim): 3030-01-272-4684. Verify interchangeability with system specifications before substitution.
Key specifications for BC-8020-A: Outlet Location: TOP; Mounting Facility Type and Quantity: 1 PEDESTAL AND 8 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Phase: THREE. 19 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.