The Pump,centrifugal, cataloged under National Stock Number 4320-01-533-6148, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-533-6148 |
| Primary Part Number | D-1021 4X3X6 400 GPM |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Pumping Element Operating Position | HORIZONTAL |
| Centrifugal Pump Impeller Quantity | 1 |
| Centrifugal Pump Impeller Suction Type | SINGLE |
| Operating Speed at Rated Capacity | 3550.0 REVOLUTIONS PER MINUTE |
| Stage Quantity | 1 |
| Pump Rotation Direction | CLOCKWISE |
| Total Head | 78.500 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-1021 4X3X6 400 GPM PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| D-1021 4X3X6 400 GPM | 3/9 Design control — primary reference U.S. Government activity |
NSN 4320-01-533-6148 is a Pump,centrifugal, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-533-6148 has 1 manufacturer part number on file: D-1021 4X3X6 400 GPM (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for D-1021 4X3X6 400 GPM: Pumping Element Operating Position: HORIZONTAL; Centrifugal Pump Impeller Quantity: 1; Centrifugal Pump Impeller Suction Type: SINGLE; Operating Speed at Rated Capacity: 3550.0 REVOLUTIONS PER MINUTE. 7 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.