The Pump Unit,rotary, cataloged under National Stock Number 4320-00-441-2764, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-441-2764 |
| Item Name | Pump Unit,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Discharge Connection Quantity | 2 |
| Intake Connection Type | THREADED INTERNAL |
| Inclosure Type | PARTIALLY INCLOSED |
| Current Type | DC |
| Pumping Element Operating Position | HORIZONTAL |
| Voltage in Volts | 27.5 |
| Prime Mover Quantity | 1 |
| Operating Speed at Rated Capacity | 5000.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Discharge Connection Thread Size and Series/type Designator | 0.438-20 UNF |
| Prime Mover Cooling Medium | AIR |
| Intake Connection Thread Size and Series/type Designator | 0.438-20 UNF |
| Discharge Pressure | 0.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Environmental Protection | DUST-IGNITION PROOF |
| Maximum Discharge Flow Rate | 5.0 GALLONS PER MINUTE |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Operation Relationship Design | SIMULTANEOUS |
| 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 |
|---|---|
| 20820-1 | 3/2 Design control — primary reference U.S. Government activity |
| 652171 | 5/2 Secondary reference U.S. Government activity |
NSN 4320-00-441-2764 is a Pump Unit,rotary, classified under FSC 4320, Power and Hand Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5995-01-143-1391. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-00-441-2764: Discharge Connection Quantity: 2; Intake Connection Type: THREADED INTERNAL; Inclosure Type: PARTIALLY INCLOSED; Current Type: DC. 20 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.