The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-554-9466, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is A. O. Smith Corporation Dba a O Smith Corp. Government technical data includes 24 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-554-9466 |
| Primary Part Number | 576922 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | A. O. Smith Corporation Dba a O Smith Corp |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | THREADED EXTERNAL |
| Inclosure Type | FULLY INCLOSED |
| Current Type | DC |
| Suction Lift | 20.000 FEET FT |
| Centrifugal Pump Impeller Quantity | 1 |
| Voltage in Volts | 230.0 |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 3550.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Discharge Connection Thread Size and Series/type Designator | 2.500 NH |
| Intake Connection Thread Size and Series/type Designator | 2.500 NH |
| Nondefinitive Spec/std Data | 4 CLASS |
| Stage Quantity | 1 |
| Environmental Protection | SUBMERSIBLE |
| Maximum Discharge Flow Rate | 180.0 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED EXTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | WATER, FRESH OR WATER, SALT |
| Centrifugal Pump Design | RADIAL FLOW |
| Total Head | 50.000 FEET FT |
| Current Rating in Amps | 21.5 |
| 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 |
|---|---|
| 576922 PRIMARY | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| 822K230 PRIMARY | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| 576910 PRIMARY | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| Reference | Meaning |
|---|---|
| S4700F3184399 | 5/2 Secondary reference U.S. Government activity |
| 576922 | 5/2 Secondary reference U.S. Government activity |
| 822H230VDCNM | 3/2 Design control — primary reference U.S. Government activity |
| S4700F3175599 | 5/2 Secondary reference U.S. Government activity |
| 822H230VDC | 3/2 Design control — primary reference U.S. Government activity |
| 576912 | 5/2 Secondary reference U.S. Government activity |
| MILP17454 | 4/1 Identification reference U.S. Government activity |
| S4700F3175597 | 5/2 Secondary reference U.S. Government activity |
| 822H230 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-00-554-9466 is a Pump Unit,centrifugal, manufactured by A. O. Smith Corporation Dba a O Smith Corp, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-554-9466 has 3 manufacturer part numbers on file: 576922 (A. O. Smith Corporation Dba a O Smith Corp), 822K230 (A. O. Smith Corporation Dba a O Smith Corp), 576910 (A. O. Smith Corporation Dba a O Smith Corp).
4 possible matches (shared part number, not a government interchangeability claim): 6110-00-578-6789, 3020-00-700-4311, 3020-00-700-6303. Verify interchangeability with system specifications before substitution.
Key specifications for 576922: Discharge Connection Quantity: 1; Intake Connection Type: THREADED EXTERNAL; Inclosure Type: FULLY INCLOSED; Current Type: DC. 24 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.