The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-218-3652, 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 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-218-3652 |
| Primary Part Number | 002-7100555-216-3.75IN |
| 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 Length | 0.812 INCHES NOMINAL AND 1.000 INCHES NOMINAL IN |
| Design Type | SINGLE WIDTH |
| Overall Diameter | 3.562 INCHES NOMINAL IN |
| Mounting Method | KEY |
| Keyway Quantity | 1 |
| Hub Projection Length Beyond Wheel Side | 1.359 INCHES NOMINAL AND 1.172 INCHES NOMINAL IN |
| Blade Quantity | 4 |
| Keyway Length | 1.250 INCHES NOMINAL IN |
| Hub Quantity | 2 |
| Hub Location | BACK SIDE AND FRONT SIDE |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| 6FCS-471 NO 1 | Carver Pump Company (USA) |
| 6FCS-472 PC 21 | Carver Pump Company (USA) |
| 6FCS-473 PC 21 | Carver Pump Company (USA) |
| 002-7100555-216-3.75IN PRIMARY | Carver Pump Company (USA) |
| Reference | Meaning |
|---|---|
| 6FCS-471 | D/9 Drawing number reference only Aurora Pump a Unit of General Signal Corp |
| 6FCS-472 PC 21 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 6FCS-473 PC 21 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 6FCS-471 NO 1 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 21F0156261NH | 5/9 Secondary reference Carver Pump Company |
| 6FCS-472 | D/9 Drawing number reference only Aurora Pump a Unit of General Signal Corp |
| 21F0156261NH | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
NSN 4320-01-218-3652 is a Impeller,pump,centrifugal, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-218-3652 has 4 manufacturer part numbers on file: 6FCS-471 NO 1 (Carver Pump Company), 6FCS-472 PC 21 (Carver Pump Company), 6FCS-473 PC 21 (Carver Pump Company), 002-7100555-216-3.75IN (Carver Pump Company).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-219-5632. Verify interchangeability with system specifications before substitution.
Key specifications for 002-7100555-216-3.75IN: Keyway Type: RECTANGULAR; Keyway Depth: 0.094 INCHES NOMINAL IN; Hub Length: 0.812 INCHES NOMINAL AND 1.000 INCHES NOMINAL IN; Design Type: SINGLE WIDTH. 16 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.