The Seat,valve, cataloged under National Stock Number 4820-01-346-1734, 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 4 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-346-1734 |
| Primary Part Number | 211058010 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| FSC Application Data | VALVE BALL 2.00NPS |
| Body Outside Diameter | 2.248 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 1.375 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 |
|---|---|
| 211058010 PRIMARY | Naval Sea Systems Command (USA) |
| 801-6408786 FIND 47 | Naval Sea Systems Command (USA) |
| DF330646 FIND 47 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
NSN 4820-01-346-1734 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-346-1734 has 3 manufacturer part numbers on file: 211058010 (Naval Sea Systems Command), 801-6408786 FIND 47 (Naval Sea Systems Command), DF330646 FIND 47 (Huntington Ingalls Inc Div Newport News Shipbuilding).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-633-2770. Verify interchangeability with system specifications before substitution.
Key specifications for 211058010: Overall Height: 0.411 INCHES NOMINAL IN; FSC Application Data: VALVE BALL 2.00NPS; Body Outside Diameter: 2.248 INCHES NOMINAL IN; Style Designator: PLAIN. 4 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.