The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-063-3864, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-063-3864 |
| Primary Part Number | 502303 |
| 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 EXTERNAL |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Pumping Element Operating Position | HORIZONTAL |
| Prime Mover Power Rating | 0.150 HORSEPOWER |
| Centrifugal Pump Impeller Quantity | 1 |
| Voltage in Volts | 115.0 |
| Cooling Method | SELF VENTILATED |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Pump Quantity | 1 |
| Discharge Connection Thread Size and Series/type Designator | 0.500-14 NPT |
| Prime Mover Cooling Medium | AIR |
| Intake Connection Thread Size and Series/type Designator | 0.500-14 NPT |
| Stage Quantity | 1 |
| Discharge Pressure | .8 LOW VOLATILE ORGANIC COMPOUND - CONSUMER PRODUCTS - ANTIPERSPIRANTS AND DEODORANTS |
| Maximum Discharge Flow Rate | 0.3 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | LIQUID |
| Centrifugal Pump Design | RADIAL FLOW |
| Current Rating in Amps | 3.2 |
| 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 |
|---|---|
| 502303 PRIMARY | Little Giant Pump Co (USA) |
| Reference | Meaning |
|---|---|
| 3E-12NDVR | 5/9 Secondary reference Little Giant Pump Co |
| 503303 | 5/9 Secondary reference Little Giant Pump Co |
NSN 4320-01-063-3864 is a Pump Unit,centrifugal, manufactured by Little Giant Pump Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-063-3864 has 1 manufacturer part number on file: 502303 (Little Giant Pump Co).
3 possible matches (shared part number, not a government interchangeability claim): 2995-01-088-0925, 4810-01-512-7326, 7010-01-674-0998. Verify interchangeability with system specifications before substitution.
Key specifications for 502303: Discharge Connection Quantity: 1; Phase: SINGLE; Intake Connection Type: THREADED EXTERNAL; Frequency in Hertz: 60.0. 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.