The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-972-1609, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-972-1609 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| FSC Application Data | HEATER DUCT TYPE,PORTABLE |
| Hub Bore Diameter | 0.395 INCHES NOMINAL IN |
| Hub Length | 1.055 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 3.630 INCHES NOMINAL IN |
| Hub Projection Length Beyond Wheel Side | 1.055 INCHES NOMINAL IN |
| Blade Quantity | 2 |
| Hub Quantity | 1 |
| Hub Location | BACK SIDE |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | CLOCKWISE OR COUNTERCLOCKWISE |
| Blade Type | FORWARD CURVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 4320PL0871415 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| TR3221 | 5/9 Secondary reference Drs Environmental Systems Inc |
| TR3221 | 3/9 Design control — primary reference U.S. Government activity |
| TR3221 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-00-972-1609 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-00-972-1609: FSC Application Data: HEATER DUCT TYPE,PORTABLE; Hub Bore Diameter: 0.395 INCHES NOMINAL IN; Hub Length: 1.055 INCHES NOMINAL IN; Design Type: SINGLE WIDTH. 12 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.