The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-482-3518, 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 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-482-3518 |
| Primary Part Number | 3E-12N 503103 |
| 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 |
| Intake Connection Type | THREADED INTERNAL |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Pumping Element Operating Position | HORIZONTAL |
| Prime Mover Power Rating | 0.066 HORSEPOWER |
| Unpackaged Unit Length | 7.000 INCHES NOMINAL IN |
| Supplementary Features | ALUMINUM MOTOR HOUSING |
| Centrifugal Pump Impeller Quantity | 1 |
| Voltage in Volts | 115.0 |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Pump Quantity | 1 |
| Unpackaged Unit Width | 4.5000 INCHES NOMINAL IN |
| Discharge Connection Thread Size and Series/type Designator | 0.500-14 NPT |
| Prime Mover Cooling Medium | AIR AND LIQUID AND OIL |
| Intake Connection Thread Size and Series/type Designator | 0.500-14 NPT |
| Unpackaged Unit Height | 5.500 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Discharge Pressure | .5 LOW VOLATILE ORGANIC COMPOUND - SOLVENTS - SOLVENTS |
| Environmental Protection | SUBMERSIBLE |
| Maximum Discharge Flow Rate | 5.3 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED EXTERNAL |
| Intake Connection Quantity | 1 |
| Material | PLASTIC PUMP BASIC |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | LIQUID |
| 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 |
|---|---|
| 3E-12N 503103 PRIMARY | Little Giant Pump Co (USA) |
| 503103 | Little Giant Pump Co (USA) |
| Reference | Meaning |
|---|---|
| 3E12N | 5/1 Secondary reference Little Giant Pump Co |
NSN 4320-00-482-3518 is a Pump Unit,centrifugal, manufactured by Little Giant Pump Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-482-3518 has 2 manufacturer part numbers on file: 3E-12N 503103 (Little Giant Pump Co), 503103 (Little Giant Pump Co).
1 possible match (shared part number, not a government interchangeability claim): 5910-00-669-2649. Verify interchangeability with system specifications before substitution.
Key specifications for 3E-12N 503103: Discharge Connection Quantity: 1; Phase: SINGLE; Intake Connection Type: THREADED INTERNAL; Frequency in Hertz: 60.0. 29 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.