The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-397-7910, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-397-7910 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Hub Bore Diameter | 0.675 INCHES NOMINAL IN |
| Hub Length | 1.052 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.750 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Thread Diameter | 0.625 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Hub Projection Length Beyond Wheel Side | 0.125 INCHES NOMINAL IN |
| Blade Quantity | 12 |
| Hub Quantity | 1 |
| Hub Location | SINGLE INSIDE CENTER |
| Screw Thread Series Designator | UNF |
| Material | NICKEL ALLOY |
| Thread Quantity | 18 PER INCH |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Blade Type | BACKWARD 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 |
|---|---|
| 082682D | 5/1 Secondary reference U.S. Government activity |
| 82678 | 5/9 Secondary reference U.S. Government activity |
| 082678D | 3/2 Design control — primary reference U.S. Government activity |
| 82678D | 5/2 Secondary reference U.S. Government activity |
| 082682D ITEM NO. 19 | 5/2 Secondary reference U.S. Government activity |
NSN 4320-01-397-7910 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4720-01-571-6755. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-01-397-7910: Hub Bore Diameter: 0.675 INCHES NOMINAL IN; Hub Length: 1.052 INCHES NOMINAL IN; Design Type: SINGLE WIDTH; Overall Diameter: 4.750 INCHES NOMINAL IN. 16 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.