The Fan,centrifugal, cataloged under National Stock Number 4140-01-349-3914, 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 Emcor Enclosures Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-349-3914 |
| Primary Part Number | BL-500EG |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Emcor Enclosures Llc |
| Status | ACTIVE |
| Length | 11.562 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 140.0 WATTS |
| Style Designator | FIXED, DUAL, RECTANGULAR OUTLETS |
| Height | 8.750 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 1700.0 |
| Width | 19.000 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Air Flow Rate | 500.0 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 |
|---|---|
| BL-500EG PRIMARY | Emcor Enclosures Llc (USA) |
| Reference | Meaning |
|---|---|
| 1452-500-00 | 7/2 Vendor item drawing reference L-3 Communications |
NSN 4140-01-349-3914 is a Fan,centrifugal, manufactured by Emcor Enclosures Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-349-3914 has 1 manufacturer part number on file: BL-500EG (Emcor Enclosures Llc).
Key specifications for BL-500EG: Length: 11.562 INCHES NOMINAL IN; Drive Type: DIRECT; Prime Mover Power Rating: 140.0 WATTS; Style Designator: FIXED, DUAL, RECTANGULAR OUTLETS. 9 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.