The Pump,centrifugal, cataloged under National Stock Number 4320-01-478-2857, 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 Fleet Solutions. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-01-478-2857 |
| Primary Part Number | RY-173728 PUMP END |
| Item Name | Pump,centrifugal |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Fleet Solutions |
| Status | ACTIVE |
| 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 |
|---|---|
| RY-173728 PUMP END PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Fleet Solutions (USA) |
| RY-173728 PUMP END PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| RY-173728 PUMP END | 3/9 Design control — primary reference U.S. Government activity |
NSN 4320-01-478-2857 is a Pump,centrifugal, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Fleet Solutions, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-478-2857 has 2 manufacturer part numbers on file: RY-173728 PUMP END (Curtiss-Wright Electro-Mechanical Corporation Div Fleet Solutions), RY-173728 PUMP END (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for RY-173728 PUMP END: Special Features: VERY DETAILED INFORMATION AVAILABLE AT WWW.FLOWSERVE.COM; Part Name Assigned by Controlling Agency: INAVY: NOTHING LISTED IN PC 34; End Item Identification: PUMP CTFGL 3000GPM 49PSI 1785RPM MD VLT RPM. 0 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.