The Valve,flow Control, cataloged under National Stock Number 4820-00-349-6715, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-349-6715 |
| Primary Part Number | 1539P |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Stem Material | COPPER ALLOY |
| Flow Control Device | NEEDLE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Connection Type | THREADED EXTERNAL PIPE |
| End Connection Quantity | 1 |
| Features Provided | BONNET PACKING |
| Nominal Thread Size | 0.750 INCHES IN |
| Body Material | COPPER ALLOY |
| Thread Series Designator | NPT |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 1539P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL8900PC5T05-5 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL9041PC5T05-5 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| DR83393PC27T029-31-32 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| SL9041PC5T05-5 | 5/9 Secondary reference U.S. Government activity |
| SL8900PC5T05-5 | 5/9 Secondary reference U.S. Government activity |
| SL-8900 | D/9 Drawing number reference only U.S. Government activity |
| DR83393PC27T029-31-32 | 5/9 Secondary reference U.S. Government activity |
| 1539P | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-349-6715 is a Valve,flow Control, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-349-6715 has 4 manufacturer part numbers on file: 1539P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL8900PC5T05-5 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL9041PC5T05-5 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), DR83393PC27T029-31-32 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-215-2274, 5305-01-523-6533. Verify interchangeability with system specifications before substitution.
Key specifications for 1539P: Stem Material: COPPER ALLOY; Flow Control Device: NEEDLE; Furnished Items and Quantity: 1 HANDWHEEL; Connection Type: THREADED EXTERNAL PIPE. 10 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.