The Guard,fan Impeller, cataloged under National Stock Number 4140-01-589-0056, 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 Naval Sea Systems Command. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-589-0056 |
| Primary Part Number | 574279 FIND NO. 16 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Naval Sea Systems Command |
| 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 |
|---|---|
| 574279 FIND NO. 16 | Naval Sea Systems Command (USA) |
| 5749279-035 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| SNN807-2-1 | 3/2 Design control — primary reference U.S. Government activity |
| 574279 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4140-01-589-0056 is a Guard,fan Impeller, manufactured by Naval Sea Systems Command, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-589-0056 has 2 manufacturer part numbers on file: 574279 FIND NO. 16 (Naval Sea Systems Command), 5749279-035 (Naval Sea Systems Command).
Key specifications for 574279 FIND NO. 16: Part Name Assigned by Controlling Agency: LCAC SCREEN, WEBBING LIFT FAN. 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.