The Pump,centrifugal, cataloged under National Stock Number 4320-00-101-0309, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Waterous Company. Government technical data includes 16 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. 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 | 4320-00-101-0309 |
| Primary Part Number | 80703 |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Waterous Company |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | ROUND FLANGE |
| Drive Shaft Length | 2.675 INCHES NOMINAL IN |
| Drive Connection Type | RIGID COUPLED |
| Centrifugal Pump Impeller Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Drive Shaft Type | MACHINE KEYWAY AND TAPERED |
| Stage Quantity | 1 |
| Maximum Discharge Flow Rate | 1200.0 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 1.141 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| Discharge Connection Type | ROUND FLANGE |
| Intake Connection Quantity | 1 |
| Media for Which Designed | WATER, FRESH |
| Pump Rotation Direction | CLOCKWISE |
| Centrifugal Pump Design | RADIAL FLOW |
| Total Head | 1500.000 FEET FT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4320-00-101-0309 is a Pump,centrifugal, manufactured by Waterous Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-101-0309 has 2 manufacturer part numbers on file: CHD4 (Waterous Company), 80703 (Waterous Company).
1 possible match (shared part number, not a government interchangeability claim): 5935-00-226-2488. Verify interchangeability with system specifications before substitution.
Key specifications for 80703: Discharge Connection Quantity: 1; Intake Connection Type: ROUND FLANGE; Drive Shaft Length: 2.675 INCHES NOMINAL IN; Drive Connection Type: RIGID COUPLED. 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.