The Stem,fluid Valve, cataloged under National Stock Number 4820-01-406-8542, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-406-8542 |
| Primary Part Number | 284026-0001 ITEM 19L1 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Valve Type for Which Designed | SOLENOID |
| Largest Outside Diameter | 0.2814 INCHES MINIMUM IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE |
| Material | STEEL CORROSION RESISTING |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 284026-0001 ITEM 19L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 195461-0001L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 195461-0001 | 5/2 Secondary reference U.S. Government activity |
| 284026-0001 ITEM 19 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4820-01-406-8542 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-406-8542 has 2 manufacturer part numbers on file: 284026-0001 ITEM 19L1 (Naval Inventory Control Point Mechanicsburg), 195461-0001L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 284026-0001 ITEM 19L1: Valve Type for Which Designed: SOLENOID; Largest Outside Diameter: 0.2814 INCHES MINIMUM IN; Criticality Code Justification: ZZZY; Material Document and Classification: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE. 6 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 4820-01-406-8542 has DEMIL Code B. 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.