The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-00-398-8591, 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 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-398-8591 |
| Primary Part Number | 2589P |
| Item Name | Deflector,dirt and Liquid |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Mounting Hole Quantity | 1 |
| Style Designator | ROUND, FLANGED |
| Material Document and Classification | 46-6 MIL SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.750 INCHES NOMINAL IN |
| Material Thickness | 0.282 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Body Length | 0.593 INCHES NOMINAL IN |
| Inside Diameter | 1.812 INCHES NOMINAL IN |
| Taper Length | 0.327 INCHES NOMINAL IN |
| Thread Class | 2B |
| Material | COPPER ALLOY 903 |
| Thread Size and Series/type Designator | 0.250-20 UNIFIED NATIONAL COARSE (UNC) |
| Mounting Hole Type | THREADED |
| 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 |
|---|---|
| 2589P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL4232PC41 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL4234PC41 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| SL4232PC41 | 5/9 Secondary reference U.S. Government activity |
| SL4234PC41 | 5/9 Secondary reference U.S. Government activity |
| 2589P | 5/9 Secondary reference U.S. Government activity |
NSN 4320-00-398-8591 is a Deflector,dirt and Liquid, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-398-8591 has 3 manufacturer part numbers on file: 2589P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL4232PC41 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL4234PC41 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 2589P: Mounting Hole Quantity: 1; Style Designator: ROUND, FLANGED; Material Document and Classification: 46-6 MIL SPEC SINGLE MATERIAL RESPONSE; Outside Diameter: 2.750 INCHES NOMINAL IN. 13 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.