The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-221-2172, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-221-2172 |
| Item Name | Impeller,pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Overall Diameter | 7.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY AND NICKEL 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 |
| Reference | Meaning |
|---|---|
| 610008203011 7I | C/1 Advisory reference — outside the item-of-supply concept Ampco Metal Inc. Dba Ampco Metal Inc |
| 48-2-0301-01 7IN | C/1 Advisory reference — outside the item-of-supply concept Ampco Pumps Company Llc |
| 48-2-0301-01 7IN | 3/9 Design control — primary reference Ampco Metal Inc. Dba Ampco Metal Inc |
NSN 4320-01-221-2172 is a Impeller,pump,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-01-221-2172: Overall Diameter: 7.000 INCHES NOMINAL IN; Material: ALUMINUM ALLOY AND NICKEL ALLOY; Rotation Direction for Which Designed: COUNTERCLOCKWISE. 3 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.