The Fan,centrifugal, cataloged under National Stock Number 4140-01-271-1916, 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 14 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.
| Parameter | Value |
|---|---|
| NSN | 4140-01-271-1916 |
| Primary Part Number | DDF60H |
| 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 |
| Speed Adjustments | SINGLE SPEED |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 7.500 INCHES NOMINAL IN |
| Length | 11.000 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.166 HORSEPOWER |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Outlet Inside Width | 4.250 INCHES NOMINAL IN |
| Height | 12.875 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 1750.0 |
| Width | 13.250 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 550.0 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 |
|---|---|
| DDF60H PRIMARY | Twin City Fan Companies Ltd. Dba Tc Axial Div (USA) |
NSN 4140-01-271-1916 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 4140-01-271-1916 has 1 manufacturer part number on file: DDF60H (Twin City Fan Companies Ltd. Dba Tc Axial Div).
Key specifications for DDF60H: Speed Adjustments: SINGLE SPEED; Inclosure Type: FULLY INCLOSED; Outlet Inside Height: 7.500 INCHES NOMINAL IN; Length: 11.000 INCHES NOMINAL IN. 14 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.