The Fan,ventilating, cataloged under National Stock Number 4140-01-388-9757, 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 W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-388-9757 |
| Primary Part Number | 4C377 |
| Item Name | Fan,ventilating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 BRACKET(S) |
| Frequency in Hertz | 60.0 |
| Length | 9.062 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 120.0 AC |
| Prime Mover Power Rating | 54.0 WATTS |
| Style Designator | FIXED |
| Height | 4.750 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 1600.0 |
| Width | 8.500 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Electrical Connection Type | CONNECTOR PLUG |
| Air Flow Rate | 110.0 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 |
|---|---|
| 4C377 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| 4C377 | 5/9 Secondary reference Grainger Div of W W Grainger Inc |
| 4C821 | 5/9 Secondary reference Grainger Div of W W Grainger Inc |
| 4C821 | 5/9 Secondary reference Grainger Div of W W Grainger Inc |
NSN 4140-01-388-9757 is a Fan,ventilating, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-388-9757 has 1 manufacturer part number on file: 4C377 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for 4C377: Mounting Facility Type and Quantity: 1 BRACKET(S); Frequency in Hertz: 60.0; Length: 9.062 INCHES NOMINAL IN; Voltage in Volts and Current Type: 120.0 AC. 12 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.