The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-439-4386, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Central Pump and Supply Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-01-439-4386 |
| Primary Part Number | 2K274 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Central Pump and Supply Inc |
| Status | ACTIVE |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.440 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Blade Quantity | 3 |
| Hub Quantity | 1 |
| Hub Location | CENTERLINE |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| 2K274 | Central Pump and Supply Inc (USA) |
| Reference | Meaning |
|---|---|
| 2K274 | 3/9 Design control — primary reference Itt Goulds Pumps, Inc. |
NSN 4320-01-439-4386 is a Impeller,pump,centrifugal, manufactured by Central Pump and Supply Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-439-4386 has 1 manufacturer part number on file: 2K274 (Central Pump and Supply Inc).
Key specifications for 2K274: Design Type: SINGLE WIDTH; Overall Diameter: 4.440 INCHES NOMINAL IN; Mounting Method: THREAD; Blade Quantity: 3. 8 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.