The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-650-9471, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-650-9471 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Supplementary Features | EXTERNAL LEAKAGE: NONE, OPERATING TEMPERATURE: -30F TO 250F |
| Minimum Operating Temp | -30.0 FAHRENHEIT DEGF |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.250 MILLIMETERS FIRST END MM |
| Specification/standard Data | 81346-ASTM E380 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 80204-ANSI Y14.5M-1982 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Maximum Operating Temp | 250.00 FAHRENHEIT SINGLE RESPONSE DEGF |
| Face to Face Distance | 1.74 MILLIMETERS MM |
| Thread Quantity Per Inch | 18 FIRST END |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPTF FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 13545559 | 5/9 Secondary reference Lockheed Martin Corporation |
| 13545559 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
| DCR601-4 | 3/2 Design control — primary reference U.S. Government activity |
| 13545559 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-650-9471 is a Valve,bleeder,hydraulic System, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-650-9471: Supplementary Features: EXTERNAL LEAKAGE: NONE, OPERATING TEMPERATURE: -30F TO 250F; Minimum Operating Temp: -30.0 FAHRENHEIT DEGF; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nominal Thread Size: 0.250 MILLIMETERS FIRST END MM. 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.
NSN 4820-01-650-9471 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.