The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-100-4746, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 21 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-100-4746 |
| Primary Part Number | GP512AB1 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | THREE |
| Intake Connection Type | THREADED INTERNAL |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Prime Mover Power Rating | 3.000 HORSEPOWER |
| Centrifugal Pump Impeller Quantity | 2 |
| Voltage in Volts | 440.0 |
| Cooling Method | SELF VENTILATED |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | DOUBLE |
| Operating Speed at Rated Capacity | 3500.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Features Provided | SELF-PRIMING |
| Prime Mover Cooling Medium | AIR |
| Stage Quantity | 2 |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Centrifugal Pump Design | RADIAL 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 |
|---|---|
| GP512AB1 | Robert Brown Associates, Inc. Dba Robert Brown Associates Inc (USA) |
| GP512AB1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GP512AB1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| GP512AB1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 135SIZEF05 | C/1 Advisory reference — outside the item-of-supply concept Aurora Pump a Unit of General Signal Corp |
| 135F05 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
NSN 4320-00-100-4746 is a Pump Unit,centrifugal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-100-4746 has 2 manufacturer part numbers on file: GP512AB1 (Robert Brown Associates, Inc. Dba Robert Brown Associates Inc), GP512AB1 (Northrop Grumman Systems Corporation).
Key specifications for GP512AB1: Discharge Connection Quantity: 1; Phase: THREE; Intake Connection Type: THREADED INTERNAL; Frequency in Hertz: 60.0. 21 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.