The Pump Unit,centrifugal, cataloged under National Stock Number 4320-01-254-9660, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Oberdorfer Pumps Inc. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-254-9660 |
| Primary Part Number | 815B-T63 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Oberdorfer Pumps Inc |
| 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 |
| Pumping Element Operating Position | HORIZONTAL |
| Prime Mover Power Rating | 1.5 HORSEPOWER |
| Centrifugal Pump Impeller Quantity | 1 |
| Voltage in Volts | 220.0 AND 440.0 |
| Cooling Method | SELF VENTILATED |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 3450.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Discharge Connection Thread Size and Series/type Designator | 1.250-11-1/2 NPT |
| Prime Mover Cooling Medium | AIR |
| Intake Connection Thread Size and Series/type Designator | 1.500-11-1/2 NPT |
| Stage Quantity | 1 |
| Discharge Pressure | 4.0 ENERGY EFFICIENT - FEMP - LOW STANDBY POWER - OFFICE EQUIPMENT -INTEGRATED COMPUTERS |
| Environmental Protection | DRIPPROOF |
| Cubic Measure | 1.5000 CUBIC FEET |
| Maximum Discharge Flow Rate | 94.0 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | WATER, FRESH |
| Centrifugal Pump Design | AXIAL FLOW |
| Total Head | 80.000 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 |
NSN 4320-01-254-9660 is a Pump Unit,centrifugal, manufactured by Oberdorfer Pumps Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-254-9660 has 3 manufacturer part numbers on file: 815B-T63 (Oberdorfer Pumps Inc), 33424 (Exstar International Corporation), 815B-T63 (Oberdorfer Foundries Inc).
5 possible matches (shared part number, not a government interchangeability claim): 8105-01-388-1781, 1680-01-545-5310, 2910-01-588-2816. Verify interchangeability with system specifications before substitution.
Key specifications for 815B-T63: Discharge Connection Quantity: 1; Phase: THREE; 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.