The Stem,fluid Valve, cataloged under National Stock Number 4820-01-317-4643, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-317-4643 |
| Primary Part Number | 41F-8IN ITEM 3 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Valve Type for Which Designed | GATE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Material Document and Classification | ASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 8.000 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 |
|---|---|
| 41F-8IN ITEM 3 PRIMARY | The Walworth Company (USA) |
| Reference | Meaning |
|---|---|
| 41F-8IN ITEM 5 | C/1 Advisory reference — outside the item-of-supply concept The Walworth Company |
NSN 4820-01-317-4643 is a Stem,fluid Valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-317-4643 has 1 manufacturer part number on file: 41F-8IN ITEM 3 (The Walworth Company).
Key specifications for 41F-8IN ITEM 3: Valve Type for Which Designed: GATE; Stem Actuating End Type: THREADED EXTERNALLY; Material Document and Classification: ASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 8.000 INCHES IN. 5 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.