The Gear Operator,valve, cataloged under National Stock Number 4820-01-378-1822, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-378-1822 |
| Primary Part Number | 595-6404641-AY96 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Valve Type for Which Designed | BALL |
| 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 |
|---|---|
| 595-6404641-AY96 PRIMARY | Naval Sea Systems Command (USA) |
| 211032873 | Naval Sea Systems Command (USA) |
| 6404641 AY 96 | Naval Sea Systems Command (USA) |
| DF2085-206 AY 96 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
NSN 4820-01-378-1822 is a Gear Operator,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-378-1822 has 4 manufacturer part numbers on file: 595-6404641-AY96 (Naval Sea Systems Command), 211032873 (Naval Sea Systems Command), 6404641 AY 96 (Naval Sea Systems Command), DF2085-206 AY 96 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 595-6404641-AY96: Valve Type for Which Designed: BALL; End Item Identification: REELABLE TOWED SONAR ARRAY. 1 specification is 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.