The Pump Unit,centrifugal, cataloged under National Stock Number 4320-00-405-4882, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 28 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-405-4882 |
| Primary Part Number | RW135274LHA3 |
| Item Name | Pump Unit,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Phase | THREE |
| Intake Connection Type | ROUND FLANGE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Current Type | AC |
| Pumping Element Operating Position | VERTICAL |
| Suction Lift | 10.000 FEET FT |
| Centrifugal Pump Impeller Quantity | 1 |
| Criticality Code Justification | ZZZY |
| Voltage in Volts | 440.0 |
| Cooling Method | SELF VENTILATED |
| Prime Mover Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 1200.0 REVOLUTIONS PER MINUTE |
| Pump Quantity | 1 |
| Prime Mover Cooling Medium | AIR |
| Stage Quantity | 1 |
| Environmental Protection | DRIPPROOF |
| Maximum Discharge Flow Rate | 5300.0 GALLONS PER MINUTE |
| Discharge Connection Type | ROUND FLANGE |
| Intake Connection Quantity | 1 |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | WATER, SALT |
| Centrifugal Pump Design | RADIAL FLOW |
| Total Head | 43.000 FEET FT |
| Reference Number Differentiating Characteristics | TRIDENT PLANNED EQUIPMENT REPLACEMENT (TRIPER) AND ADVANCED EQUIPMENT REPAIR PROGRAM (AERP) PROCEDURES IAW NAVSUP WSS INST 4420.170 OPERATING PROCEDURE 3. INCLUDES BOTH L1/SS/Q3/Q5/SOC AND NON-L1/SS/Q3/Q5/SOC TRIPER/AERP COMPONENTS. TRIPER/AERP EQUIPMENT HAVE SPECIAL REQUIREMENTS BUT NO SPECIFIC MATERIAL CONTROL |
| Current Rating in Amps | 100.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| RW135274LHA3 | Naval Inventory Control Point Mechanicsburg (USA) |
| RW135274A3 | Naval Inventory Control Point Mechanicsburg (USA) |
| RW135274LH | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| RW135274 | 3/9 Design control — primary reference U.S. Government activity |
| RW135274LH | 5/9 Secondary reference U.S. Government activity |
| RW135274 | 3/1 Design control — primary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
NSN 4320-00-405-4882 is a Pump Unit,centrifugal, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-405-4882 has 3 manufacturer part numbers on file: RW135274LHA3 (Naval Inventory Control Point Mechanicsburg), RW135274A3 (Naval Inventory Control Point Mechanicsburg), RW135274LH (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
1 possible match (shared part number, not a government interchangeability claim): 4320-00-860-0689. Verify interchangeability with system specifications before substitution.
Key specifications for RW135274LHA3: Discharge Connection Quantity: 1; Phase: THREE; Intake Connection Type: ROUND FLANGE; Frequency in Hertz: 60.0. 28 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.