The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-043-1817, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Johnston Pump Co Inc Div of Johnston Pump/general Valve Inc. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-043-1817 |
| Primary Part Number | 46443A |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Johnston Pump Co Inc Div of Johnston Pump/general Valve Inc |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 0.250 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.938 INCHES NOMINAL IN |
| Hub Length | 0.562 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 13.125 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.562 INCHES NOMINAL IN |
| Blade Quantity | 5 |
| Keyway Length | 3.938 INCHES NOMINAL IN |
| Hub Location | BACK SIDE |
| Keyway Width | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 46443A PRIMARY | Johnston Pump Co Inc Div of Johnston Pump/general Valve Inc (USA) |
NSN 4320-01-043-1817 is a Impeller,pump,centrifugal, manufactured by Johnston Pump Co Inc Div of Johnston Pump/general Valve Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-043-1817 has 1 manufacturer part number on file: 46443A (Johnston Pump Co Inc Div of Johnston Pump/general Valve Inc).
Key specifications for 46443A: Keyway Type: RECTANGULAR; Keyway Depth: 0.250 INCHES NOMINAL IN; Hub Bore Diameter: 1.938 INCHES NOMINAL IN; Hub Length: 0.562 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.