The Pump,rotary, cataloged under National Stock Number 4320-01-239-6721, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Viking Pump, Inc. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-239-6721 |
| Primary Part Number | BA-1255-1 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Viking Pump, Inc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | ROUND FLANGE |
| Pumping Element Operating Position | HORIZONTAL |
| Suction Lift | 15.000 FEET FT |
| Drive Shaft Length | 2.250 INCHES NOMINAL IN |
| Drive Connection Type | CLOSE COUPLED |
| Operating Speed at Rated Capacity | 520.0 REVOLUTIONS PER MINUTE |
| Drive Shaft Type | KEY TYPE, INTERNAL |
| Discharge Pressure | 0.0 ENERGY EFFICIENT - FEMP - APPLIANCES - FREEZERS |
| Cubic Measure | 4.9000 CUBIC FEET |
| Maximum Discharge Flow Rate | 140.0 GALLONS PER MINUTE |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | ROUND FLANGE |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| Operation Method | POWERED |
| Total Head | 67.000 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 |
| Part Number | Manufacturer |
|---|---|
| BA-1255-1 PRIMARY | Viking Pump, Inc (USA) |
NSN 4320-01-239-6721 is a Pump,rotary, manufactured by Viking Pump, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-239-6721 has 1 manufacturer part number on file: BA-1255-1 (Viking Pump, Inc).
Key specifications for BA-1255-1: Discharge Connection Quantity: 1; Intake Connection Type: ROUND FLANGE; Pumping Element Operating Position: HORIZONTAL; Suction Lift: 15.000 FEET FT. 18 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.