The Seat,valve, cataloged under National Stock Number 4820-01-441-7686, 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 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-441-7686 |
| Primary Part Number | 211046564 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Outside Diameter | 2.465 INCHES MAXIMUM IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 2.095 INCHES MAXIMUM 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 |
|---|---|
| 585-6404634-19 | Naval Sea Systems Command (USA) |
| 585-6404634 FIND 19 | Naval Sea Systems Command (USA) |
| 211046564 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6404634 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF2080-119 FN 19 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-441-7686 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-441-7686 has 3 manufacturer part numbers on file: 585-6404634-19 (Naval Sea Systems Command), 585-6404634 FIND 19 (Naval Sea Systems Command), 211046564 (Naval Sea Systems Command).
Key specifications for 211046564: Overall Height: 0.312 INCHES NOMINAL IN; Body Outside Diameter: 2.465 INCHES MAXIMUM IN; Style Designator: PLAIN; Body Inside Diameter: 2.095 INCHES MAXIMUM IN. 3 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.