The Fan Assembly,centrifugal, cataloged under National Stock Number 4140-01-540-8638, 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 Eg and G Rotron Regenerative Blower Opns. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-540-8638 |
| Primary Part Number | 011764 |
| Item Name | Fan Assembly,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Eg and G Rotron Regenerative Blower Opns |
| Status | ACTIVE |
| Component Quantity | 2 |
| 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 |
|---|---|
| 011764 PRIMARY | Eg and G Rotron Regenerative Blower Opns (USA) |
| Reference | Meaning |
|---|---|
| 569-7067781 | D/9 Drawing number reference only Naval Sea Systems Command |
| 218-070-229 | 5/2 Secondary reference U.S. Government activity |
| 569-7067781-219 | 5/1 Secondary reference Naval Sea Systems Command |
| H677-2701-219 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-540-8638 is a Fan Assembly,centrifugal, manufactured by Eg and G Rotron Regenerative Blower Opns, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-540-8638 has 1 manufacturer part number on file: 011764 (Eg and G Rotron Regenerative Blower Opns).
Key specifications for 011764: Component Quantity: 2; Part Name Assigned by Controlling Agency: ECDC W/SUPERBALANCE SPARTAN FAN; End Item Identification: FAN ASSEMBLY. 1 specification is 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.