The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-299-6730, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Gusher Pumps. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-01-299-6730 |
| Primary Part Number | D-501-N21C |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Gusher Pumps |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Operating Position | HORIZONTAL |
| Centrifugal Pump Impeller Quantity | 2 |
| Operating Speed at Rated Capacity | 1725.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Intake Connection Quantity | 1 |
| Centrifugal Pump Design | AXIAL FLOW |
| 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 |
|---|---|
| D-501-N21C PRIMARY | Gusher Pumps (USA) |
| Reference | Meaning |
|---|---|
| D-501-N21C | C/1 Advisory reference — outside the item-of-supply concept Ruthman Pump and Engineering, Inc Dba Fulflo Specialties Company |
NSN 4320-01-299-6730 is a Pump Unit,centrifugal, manufactured by Gusher Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-299-6730 has 1 manufacturer part number on file: D-501-N21C (Gusher Pumps).
Key specifications for D-501-N21C: Discharge Connection Quantity: 1; Pumping Element Operating Position: HORIZONTAL; Centrifugal Pump Impeller Quantity: 2; Operating Speed at Rated Capacity: 1725.0 REVOLUTIONS PER MINUTE. 7 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.