The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-101-4856, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-101-4856 |
| Primary Part Number | 3343966 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Keyway Type | STRAIGHT |
| Keyway Depth | 0.188 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.305 INCHES NOMINAL IN |
| Hub Length | 0.562 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 8.000 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.494 INCHES NOMINAL IN |
| Blade Quantity | 7 |
| Keyway Length | 1.940 INCHES NOMINAL IN |
| Hub Quantity | 1 |
| Hub Location | SINGLE INSIDE OFFSET |
| Keyway Width | 0.312 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 3343966 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 3343966 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
| 3343966 | 5/9 Secondary reference General Motors Corp |
NSN 4320-00-101-4856 is a Impeller,pump,centrifugal, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-101-4856 has 1 manufacturer part number on file: 3343966 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 3343966: Keyway Type: STRAIGHT; Keyway Depth: 0.188 INCHES NOMINAL IN; Hub Bore Diameter: 1.305 INCHES NOMINAL IN; Hub Length: 0.562 INCHES NOMINAL IN. 17 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.