The Gear Operator,valve, cataloged under National Stock Number 4820-01-378-2012, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. 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 | 4820-01-378-2012 |
| Primary Part Number | 595-6404641-AY95 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| 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 |
|---|---|
| 6404641 AY 95 | Naval Sea Systems Command (USA) |
| 595-6404641-AY95 PRIMARY | Naval Sea Systems Command (USA) |
| DF2085-206 AY 95 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 211035904 | Naval Sea Systems Command (USA) |
NSN 4820-01-378-2012 is a Gear Operator,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-378-2012 has 4 manufacturer part numbers on file: 6404641 AY 95 (Naval Sea Systems Command), 595-6404641-AY95 (Naval Sea Systems Command), DF2085-206 AY 95 (Huntington Ingalls Inc Div Newport News Shipbuilding), 211035904 (Naval Sea Systems Command).
Key specifications for 595-6404641-AY95: End Item Identification: REELABLE TOWED SONAR ARRAY. 0 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.