The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-425-6709, 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 14 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-425-6709 |
| Primary Part Number | 002-0YN-A03-253 3-3/8 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| Keyway Type | RECTANGULAR |
| Keyway Depth | 0.094 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.375 INCHES NOMINAL AND 0.626 INCHES NOMINAL IN |
| Hub Length | 1.063 INCHES NOMINAL AND 0.500 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.122 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 1.063 INCHES NOMINAL AND 1.062 INCHES NOMINAL IN |
| Keyway Length | 1.062 INCHES NOMINAL IN |
| Hub Quantity | 2 |
| Hub Location | FRONT SIDE AND BACK SIDE |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 002-0YN-A03-253 3-3/8 PRIMARY | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 002-0YN-A03-253 | 5/9 Secondary reference Carver Pump Company |
| N-999-89YC-A-001 ITEM 19 | 5/9 Secondary reference Carver Pump Company |
| B-002-OYN-A-03- | C/1 Advisory reference — outside the item-of-supply concept Carver Pump Company |
| B-002-OYN-A-03-253 | 5/9 Secondary reference Carver Pump Company |
| N-996-89YC-A-001 ITEM 19 | 5/9 Secondary reference Carver Pump Company |
NSN 4320-01-425-6709 is a Impeller,pump,centrifugal, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-425-6709 has 1 manufacturer part number on file: 002-0YN-A03-253 3-3/8 (Carver Pump Company).
Key specifications for 002-0YN-A03-253 3-3/8: Keyway Type: RECTANGULAR; Keyway Depth: 0.094 INCHES NOMINAL IN; Hub Bore Diameter: 1.375 INCHES NOMINAL AND 0.626 INCHES NOMINAL IN; Hub Length: 1.063 INCHES NOMINAL AND 0.500 INCHES NOMINAL IN. 14 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.