The Valve,shuttle, cataloged under National Stock Number 4820-01-271-1902, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lockheed Martin Corp. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-271-1902 |
| Primary Part Number | ST47D73-1 |
| Item Name | Valve,shuttle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lockheed Martin Corp |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Style | FLARE(TUBE) SECOND END |
| Connection Style | FLARE(TUBE) THIRD END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE THIRD END |
| Style Designator | CROSS |
| Nominal Outside Diameter Tube Accommodated | 0.190 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.190 INCHES THIRD END IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 10.000 INCHES ALL ENDS IN |
| Maximum Operating Temp | 230.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Thread Class | 2A FIRST END A |
| Thread Class | 2B SECOND END |
| Thread Class | 2B THIRD END |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Thread Series Designator | UNF ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| ST47D73-1 | Lockheed Martin Corp (USA) |
| Reference | Meaning |
|---|---|
| ST47D73 | 7/1 Vendor item drawing reference Lockheed Martin Corp |
| MEV-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-271-1902 is a Valve,shuttle, manufactured by Lockheed Martin Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-271-1902 has 1 manufacturer part number on file: ST47D73-1 (Lockheed Martin Corp).
Key specifications for ST47D73-1: Flow Control Device: POPPET; Connection Style: PLAIN (TUBE) FIRST END; Connection Style: FLARE(TUBE) SECOND END; Connection Style: FLARE(TUBE) THIRD END. 22 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.