The Stem,fluid Valve, cataloged under National Stock Number 4820-00-972-9779, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-972-9779 |
| Primary Part Number | 8105-8-7-1AND7918-5Y |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Valve Type for Which Designed | ANGLE |
| Largest Outside Diameter | 2.875 INCHES NOMINAL IN |
| Stem Actuating End Type | THREADED INTERNALLY |
| Valve Size for Which Designed | 3.292 INCHES IN |
| Material | STEEL |
| 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 |
|---|---|
| 8105-8-7-1AND7918-5Y PRIMARY | The Walworth Company (USA) |
| C-8105-8-7 PRIMARY | The Walworth Company (USA) |
| 7918-5YAND8105-8-7-1 PRIMARY | The Walworth Company (USA) |
| Reference | Meaning |
|---|---|
| 2620-922X2 7918-5Y AND 8105-7-1 | 5/2 Secondary reference U.S. Government activity |
| 1889553 7918-5Y AND 8105-7-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-00-972-9779 is a Stem,fluid Valve, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-972-9779 has 3 manufacturer part numbers on file: 8105-8-7-1AND7918-5Y (The Walworth Company), C-8105-8-7 (The Walworth Company), 7918-5YAND8105-8-7-1 (The Walworth Company).
Key specifications for 8105-8-7-1AND7918-5Y: Valve Type for Which Designed: ANGLE; Largest Outside Diameter: 2.875 INCHES NOMINAL IN; Stem Actuating End Type: THREADED INTERNALLY; Valve Size for Which Designed: 3.292 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.