The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-419-2645, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-419-2645 |
| Primary Part Number | 1002102000-4.875 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| Status | ACTIVE |
| Keyway Type | WOODRUFF |
| Keyway Depth | 0.4315 INCHES NOMINAL IN |
| Hub Bore Diameter | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Hub Length | 0.779 INCHES MINIMUM AND 0.783 INCHES MAXIMUM IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 4.875 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 0.779 INCHES MINIMUM AND 0.783 INCHES MAXIMUM IN |
| Blade Quantity | 6 |
| Keyway Length | 0.785 INCHES NOMINAL IN |
| Hub Quantity | 1 |
| Hub Location | BACK SIDE |
| Keyway Width | 0.1250 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Rotation Direction for Which Designed | CLOCKWISE |
| Blade Type | STRAIGHT |
| 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 |
|---|---|
| 1001776000 ITEM 3 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| 1002102000-4.875 PRIMARY | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 1001776000 | D/9 Drawing number reference only Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| 1002102000 | D/9 Drawing number reference only Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
NSN 4320-01-419-2645 is a Impeller,pump,centrifugal, manufactured by Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-419-2645 has 2 manufacturer part numbers on file: 1001776000 ITEM 3 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc), 1002102000-4.875 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
Key specifications for 1002102000-4.875: Keyway Type: WOODRUFF; Keyway Depth: 0.4315 INCHES NOMINAL IN; Hub Bore Diameter: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN; Hub Length: 0.779 INCHES MINIMUM AND 0.783 INCHES MAXIMUM 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.