The Fan,circulating, cataloged under National Stock Number 4140-01-148-9046, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-148-9046 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 BRACKET(S) |
| Speed Adjustments | SINGLE SPEED |
| Frequency in Hertz | 60.0 |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 67.0 WATTS |
| Style Designator | FIXED, CEILING |
| Height | 30.000 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 230.0 |
| Surface Treatment | ENAMEL BLADE |
| Material | ALUMINUM BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 21013.0 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 |
| Reference | Meaning |
|---|---|
| MARK VII | 5/9 Secondary reference Airmaster Fan Company Dba Autumaire Fan |
| MARK VII-LC | 3/9 Design control — primary reference Airmaster Fan Company Dba Autumaire Fan |
NSN 4140-01-148-9046 is a Fan,circulating, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6740-01-365-7585, 1240-01-504-2221. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-01-148-9046: Mounting Facility Type and Quantity: 1 BRACKET(S); Speed Adjustments: SINGLE SPEED; Frequency in Hertz: 60.0; Voltage in Volts and Current Type: 115.0 AC. 16 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.