The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-574-7784, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Patterson Pump Co Div Patterson Pump Company. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-574-7784 |
| Primary Part Number | N6 3-4B11711 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Patterson Pump Co Div Patterson Pump Company |
| Status | ACTIVE |
| Overall Diameter | 6.750 INCHES NOMINAL IN |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
|---|---|
| N6 3-4B11711 PRIMARY | Patterson Pump Co Div Patterson Pump Company (USA) |
| N63-4B11711 PRIMARY | Patterson Pump Co Div Patterson Pump Company (USA) |
| Reference | Meaning |
|---|---|
| S4700F3129454PC4 | 5/2 Secondary reference U.S. Government activity |
| D2280PC4 | 5/2 Secondary reference U.S. Government activity |
NSN 4320-00-574-7784 is a Impeller,pump,centrifugal, manufactured by Patterson Pump Co Div Patterson Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-574-7784 has 2 manufacturer part numbers on file: N6 3-4B11711 (Patterson Pump Co Div Patterson Pump Company), N63-4B11711 (Patterson Pump Co Div Patterson Pump Company).
1 possible match (shared part number, not a government interchangeability claim): 4320-00-787-8894. Verify interchangeability with system specifications before substitution.
Key specifications for N6 3-4B11711: Overall Diameter: 6.750 INCHES NOMINAL IN; End Item Identification: PUMP,CENTRIFUGAL;50GPM 139PSI 3500RPM RPM; Rotation Direction for Which Designed: COUNTERCLOCKWISE. 2 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.