The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-428-3833, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Carver Pump Company. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-428-3833 |
| Primary Part Number | 002-2003A01-282-4.75IN |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.724 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Quantity | 1 |
| Keyway Width | 5.0 MILLIMETERS NOMINAL MM |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 002-2003A01-282-4.75IN PRIMARY | Carver Pump Company (USA) |
| 999-2003-0-03 ITEM 2A | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 002-2003A01-282 | 5/9 Secondary reference Carver Pump Company |
| 999-2003-0-03 | D/9 Drawing number reference only Carver Pump Company |
NSN 4320-01-428-3833 is a Impeller,pump,centrifugal, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-428-3833 has 2 manufacturer part numbers on file: 002-2003A01-282-4.75IN (Carver Pump Company), 999-2003-0-03 ITEM 2A (Carver Pump Company).
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-428-4286, 4320-01-428-4289, 4320-01-428-6354. Verify interchangeability with system specifications before substitution.
Key specifications for 002-2003A01-282-4.75IN: Keyway Type: RECTANGULAR; Design Type: SINGLE WIDTH; Overall Diameter: 4.724 INCHES NOMINAL IN; Mounting Method: KEY. 9 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.