The Plug,rotary,valve, cataloged under National Stock Number 4820-01-442-3077, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-442-3077 |
| Primary Part Number | 264378701 FIND B-3 |
| Item Name | Plug,rotary,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Port Diameter | 0.406 INCHES NOMINAL IN |
| Plug Length | 2.930 INCHES NOMINAL IN |
| Port Quantity | 4 |
| Port Shape | ROUND |
| Material | STEEL CORROSION RESISTING |
| Plug Design | CYLINDRICAL |
| Plug Diameter | 3.380 INCHES NOMINAL IN |
| 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 |
|---|---|
| 264378701 FIND B-3 PRIMARY | Naval Sea Systems Command (USA) |
| 556-6408987 FIND B-3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6408987 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-442-3077 is a Plug,rotary,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-442-3077 has 2 manufacturer part numbers on file: 264378701 FIND B-3 (Naval Sea Systems Command), 556-6408987 FIND B-3 (Naval Sea Systems Command).
Key specifications for 264378701 FIND B-3: Port Diameter: 0.406 INCHES NOMINAL IN; Plug Length: 2.930 INCHES NOMINAL IN; Port Quantity: 4; Overall Length: 4.970 INCHES NOMINAL IN. 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.