The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-376-6973, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-376-6973 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Operating Position | VERTICAL |
| Centrifugal Pump Impeller Quantity | 1 |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 3700.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Operating Pressure | 90.0 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS |
| Features Provided | SELF-PRIMING |
| Discharge Connection Thread Size and Series/type Designator | 2.500-7-1/2 NH |
| Nondefinitive Spec/std Data | 11 GRADE |
| Stage Quantity | 1 |
| Maximum Discharge Flow Rate | 150.0 GALLONS PER MINUTE |
| Discharge Connection Type | THREADED EXTERNAL |
| Prime Mover Type | PNEUMATIC MOTOR |
| Media for Which Designed | WATER, FRESH |
| Centrifugal Pump Design | MIXED FLOW |
| Total Head | 150.000 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 |
| Reference | Meaning |
|---|---|
| 35 | 3/1 Design control — primary reference Ingersoll Rand Co |
| MILP556 | 4/1 Identification reference U.S. Government activity |
NSN 4320-00-376-6973 is a Pump Unit,centrifugal, classified under FSC 4320, Power and Hand Pumps. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4320-00-724-7011, 4320-00-937-6725. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-00-376-6973: Discharge Connection Quantity: 1; Pumping Element Operating Position: VERTICAL; Centrifugal Pump Impeller Quantity: 1; Prime Mover Quantity: 1. 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.