The Fan,circulating, cataloged under National Stock Number 4140-01-520-4491, 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 Frontier Electronic Systems Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-520-4491 |
| Primary Part Number | 308153-1 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Frontier Electronic Systems Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 308153-1 PRIMARY | Frontier Electronic Systems Corp (USA) |
NSN 4140-01-520-4491 is a Fan,circulating, manufactured by Frontier Electronic Systems Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-520-4491 has 1 manufacturer part number on file: 308153-1 (Frontier Electronic Systems Corp).
Key specifications for 308153-1: Special Features: EQUIPMENT COOLING FAN, SWITCHBOARD SIGNAL DISTRIBUTION, CIRCULATES AIR TO COOL ELECTRONIC EQUIPMENT ENCLOSURES; Part Name Assigned by Controlling Agency: FAN ASSEMBLY; End Item Identification: SWITCHBOARD, SIGNAL DISTRIBUTION. 0 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.