The Gear Operator,valve, cataloged under National Stock Number 4820-01-335-7350, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-335-7350 |
| Primary Part Number | D420-14-12-440 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp |
| Status | ACTIVE |
| Valve Type for Which Designed | BUTTERFLY |
| Gear Type | WORM |
| Material Document and Classification | ASTM A-395 ASSN STD SINGLE MATERIAL RESPONSE |
| Features Provided | INDICATOR GAGE |
| Valve Size for Which Designed | 12.000 INCHES IN |
| Material | IRON |
| Gear Ratio | 30 TO 1 |
| 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 |
|---|---|
| 440-819-120-420-046 | Emerson Automation Solutions Final Control Us Lp (USA) |
| D420-14-12-440 PRIMARY | Emerson Automation Solutions Final Control Us Lp (USA) |
NSN 4820-01-335-7350 is a Gear Operator,valve, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-335-7350 has 2 manufacturer part numbers on file: 440-819-120-420-046 (Emerson Automation Solutions Final Control Us Lp), D420-14-12-440 (Emerson Automation Solutions Final Control Us Lp).
Key specifications for D420-14-12-440: Valve Type for Which Designed: BUTTERFLY; Gear Type: WORM; Material Document and Classification: ASTM A-395 ASSN STD SINGLE MATERIAL RESPONSE; Features Provided: INDICATOR GAGE. 7 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.