The Stem,fluid Valve, cataloged under National Stock Number 4820-01-425-1016, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-1016 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Largest Outside Diameter | 0.497 INCHES NOMINAL IN |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Material Document and Classification | QQ-S-763, CLASS FS-416, COND T FED SPEC SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 416 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3288509 PC 54 | 5/2 Secondary reference U.S. Government activity |
| PL7027E57AC REV P PC NO 54 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 3288510 PC 54 | 5/2 Secondary reference U.S. Government activity |
| A-3288515 PC 1 | 5/2 Secondary reference U.S. Government activity |
| PL7027E57AC REV P PC NO 54 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| PL7027E57AC REV P PC NO 54 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 101A823AC-1 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 101A823AC-1 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
| 3288515 | D/9 Drawing number reference only U.S. Government activity |
| 101A823AC-1 | 3/9 Design control — primary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
NSN 4820-01-425-1016 is a Stem,fluid Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-425-1016: Largest Outside Diameter: 0.497 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY; Material Document and Classification: QQ-S-763, CLASS FS-416, COND T FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 8.969 INCHES NOMINAL IN. 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.