The Pump,centrifugal, cataloged under National Stock Number 4320-01-449-6594, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-449-6594 |
| Primary Part Number | D-512 1-1/4 X 1 X 4 |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | ROUND FLANGE |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Connection Type | MULTISTRAND V-BELT |
| Centrifugal Pump Impeller Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 3490.0 REVOLUTIONS PER MINUTE |
| Drive Shaft Type | KEY TYPE, EXTERNAL |
| Stage Quantity | 1 |
| Discharge Pressure | 1.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING SILICA FUME |
| Maximum Discharge Flow Rate | 10.0 GALLONS PER MINUTE |
| Discharge Connection Type | ROUND FLANGE |
| Intake Connection Quantity | 1 |
| Media for Which Designed | WATER, FRESH |
| Mounting Type | FLANGE |
| Centrifugal Pump Design | MIXED FLOW |
| Total Head | 50.000 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 |
| Part Number | Manufacturer |
|---|---|
| D-512 1-1/4 X 1 X 4 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| D-512 1-1/4 X 1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| D-512 1-1/4 X 1 X 4 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4320-01-449-6594 is a Pump,centrifugal, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-449-6594 has 1 manufacturer part number on file: D-512 1-1/4 X 1 X 4 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for D-512 1-1/4 X 1 X 4: Discharge Connection Quantity: 1; Intake Connection Type: ROUND FLANGE; Pumping Element Operating Position: HORIZONTAL; Drive Connection Type: MULTISTRAND V-BELT. 17 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.