The Diffuser,pump, cataloged under National Stock Number 4320-01-392-8434, 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 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-392-8434 |
| Primary Part Number | 980369-00 |
| Item Name | Diffuser,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Overall Diameter | 20.750 INCHES NOMINAL IN |
| General Characteristics Item Description | 18.125 IN. ID; FIRST STAGE; CLOSED DESIGN IN |
| Surface Treatment | CHROMIUM |
| Material | STEEL CORROSION RESISTING |
| 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-108239 ITEM 8 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 980369-00 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| RX-180369 | D/9 Drawing number reference only U.S. Government activity |
| RY-108239 ITEM 8 | 5/9 Secondary reference U.S. Government activity |
| 980369-00 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4320-01-392-8434 is a Diffuser,pump, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-392-8434 has 2 manufacturer part numbers on file: RY-108239 ITEM 8 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 980369-00 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 980369-00: Overall Diameter: 20.750 INCHES NOMINAL IN; General Characteristics Item Description: 18.125 IN. ID; FIRST STAGE; CLOSED DESIGN IN; Overall Width: 2.750 INCHES NOMINAL IN; Special Features: USED ON INGERSOLL-DRESSER MODEL 6WNLV-18 CENTRIFUGAL PUMP. 4 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.