The Fan,circulating, cataloged under National Stock Number 4140-01-198-4256, 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 20 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-198-4256 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 LOOP CLAMP |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Length | 8.630 INCHES MINIMUM AND 8.870 INCHES MAXIMUM IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Flow Direction | OUTWARD |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Features Provided | SAFETY IMPELLER GUARD |
| Ambient Temp at Full Rated Power | -25.0 FAHRENHEIT AND 125.0 FAHRENHEIT DEGF |
| Operating Speed at Rated Capacity in RPM | 1500.0 |
| Environmental Protection | HUMIDITY PROOF |
| Material | STEEL OR ALUMINUM OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Electrical Connection Type | WIRE LEAD |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 830.0 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 |
|---|---|
| BG-18F | 5/9 Secondary reference Penn Ventilator Co |
| 403738-001 | 3/2 Design control — primary reference U.S. Government activity |
| P10RA | 5/9 Secondary reference Penn Ventilator Co |
| 80-7625 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
NSN 4140-01-198-4256 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): 5905-01-203-6627, 4140-01-600-4334. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-01-198-4256: Mounting Facility Type and Quantity: 4 LOOP CLAMP; Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Frequency in Hertz: 50.0 AND 60.0. 20 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.