The Fan,ventilating, cataloged under National Stock Number 4140-01-006-5144, 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 Bell Industries, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-006-5144 |
| Primary Part Number | BS2107F-30 |
| Item Name | Fan,ventilating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Bell Industries, Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Inclosure Type | GUARDED |
| Length | 1.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 28.0 DC |
| Flow Direction | REVERSIBLE |
| Drive Type | DIRECT |
| Quantity | 1 |
| Style Designator | FIXED |
| Diameter | 4.688 INCHES MAXIMUM IN |
| Features Provided | NONSPARKING |
| Height | 4.688 INCHES NOMINAL IN |
| Width | 4.688 INCHES NOMINAL IN |
| Material | STEEL BLADE |
| Material | STEEL HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Air Flow Rate | 120.0 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 |
|---|---|
| BS2107F-30 PRIMARY | Bell Industries, Inc. (USA) |
| Reference | Meaning |
|---|---|
| BS2107F-30 | 5/9 Secondary reference United States Ceramic Tile Co |
| 4710NL-05W-B30 | C/1 Advisory reference — outside the item-of-supply concept Bell Industries, Inc. |
NSN 4140-01-006-5144 is a Fan,ventilating, manufactured by Bell Industries, Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-006-5144 has 1 manufacturer part number on file: BS2107F-30 (Bell Industries, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-377-2516. Verify interchangeability with system specifications before substitution.
Key specifications for BS2107F-30: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Inclosure Type: GUARDED; Length: 1.500 INCHES NOMINAL IN. 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.