The Impeller,pump,centrifugal, cataloged under National Stock Number 2930-00-450-9495, is classified within Federal Supply Class 2930 (Engine Cooling System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is John Deere Component Works Sub of Deere and Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2930-00-450-9495 |
| Primary Part Number | R40979 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 2930 / 29 — Engine Cooling System Components, Nonaircraft |
| Manufacturer | John Deere Component Works Sub of Deere and Co |
| Status | ACTIVE |
| Hub Bore Diameter | 0.625 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.500 INCHES NOMINAL IN |
| Blade Quantity | 6 |
| Hub Quantity | 1 |
| Hub Location | FRONT SIDE |
| Material | STEEL |
| 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 |
|---|---|
| R40979 PRIMARY | John Deere Component Works Sub of Deere and Co (USA) |
| Reference | Meaning |
|---|---|
| R40979 | 5/9 Secondary reference U.S. Government activity |
NSN 2930-00-450-9495 is a Impeller,pump,centrifugal, manufactured by John Deere Component Works Sub of Deere and Co, classified under FSC 2930, Engine Cooling System Components, Nonaircraft. Status: active.
NSN 2930-00-450-9495 has 1 manufacturer part number on file: R40979 (John Deere Component Works Sub of Deere and Co).
Key specifications for R40979: Hub Bore Diameter: 0.625 INCHES NOMINAL IN; Design Type: SINGLE WIDTH; Overall Diameter: 4.500 INCHES NOMINAL IN; Overall Width: 0.750 INCHES NOMINAL IN. 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.