The Stem,fluid Valve, cataloged under National Stock Number 4820-01-444-9268, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Watts Regulator Company. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-444-9268 |
| Primary Part Number | 408-OSY-RW-3.00INEDP702315IT10 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| Valve Type for Which Designed | GATE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Model Number for Which Designed | SERIES 408-OSY-RW |
| Material Document and Classification | ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 3.000 INCHES IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 408-OSY-RW-3.00INEDP702315IT10 PRIMARY | Watts Regulator Company (USA) |
| Reference | Meaning |
|---|---|
| 408-OSY-RW-3.00INEDP702315IT10 | 5/9 Secondary reference Key Industries Inc Dba Liberty Equipment and Supply Co |
NSN 4820-01-444-9268 is a Stem,fluid Valve, manufactured by Watts Regulator Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-444-9268 has 1 manufacturer part number on file: 408-OSY-RW-3.00INEDP702315IT10 (Watts Regulator Company).
Key specifications for 408-OSY-RW-3.00INEDP702315IT10: Valve Type for Which Designed: GATE; Stem Actuating End Type: THREADED EXTERNALLY; Valve Model Number for Which Designed: SERIES 408-OSY-RW; Material Document and Classification: ASTM B21 ASSN STD SINGLE 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.
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.