The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-003-2506, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Little Giant Pump Co. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-003-2506 |
| Primary Part Number | 506158 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Little Giant Pump Co |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | SINGLE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Pumping Element Operating Position | VERTICAL |
| Prime Mover Power Rating | 0.333 HORSEPOWER |
| Centrifugal Pump Impeller Quantity | 1 |
| Voltage in Volts | 115.0 |
| Cooling Method | WATER-AIR COOLED |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Pump Quantity | 1 |
| Features Provided | SELF-PRIMING |
| Discharge Connection Thread Size and Series/type Designator | 1.250-11-1/2 NPT |
| Prime Mover Cooling Medium | AIR |
| Stage Quantity | 1 |
| Environmental Protection | SUBMERSIBLE |
| Maximum Discharge Flow Rate | 45.8 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED INTERNAL |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | WATER, FRESH |
| Mounting Type | BASE |
| Centrifugal Pump Design | MIXED FLOW |
| Total Head | 15.000 FEET FT |
| Current Rating in Amps | 8.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4320-01-003-2506 is a Pump Unit,centrifugal, manufactured by Little Giant Pump Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-003-2506 has 2 manufacturer part numbers on file: 506158 (Little Giant Pump Co), 6-CIA (Little Giant Pump Co).
3 possible matches (shared part number, not a government interchangeability claim): 5365-01-216-8265, 5330-01-506-9463, 5340-01-601-3721. Verify interchangeability with system specifications before substitution.
Key specifications for 506158: Discharge Connection Quantity: 1; Phase: SINGLE; Frequency in Hertz: 60.0; Inclosure Type: FULLY INCLOSED. 26 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.