The Seat,valve, cataloged under National Stock Number 4820-00-104-7079, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-104-7079 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 2.625 INCHES NOMINAL IN |
| Flange Diameter | 7.496 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN |
| Body Outside Diameter | 5.468 INCHES NOMINAL IN |
| Style Designator | THREADED FLANGED |
| Material Document and Classification | MIL-N-6710,COND E,FINISH 4 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Body Inside Diameter | 4.779 INCHES MINIMUM AND 4.785 INCHES MAXIMUM IN |
| Seat Radius | 1.197 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN |
| Under Flange Height | 1.788 INCHES NOMINAL IN |
| Material | NICKEL ALLOY BODY |
| Seating Surface Shape | RADIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| PL501E456ABPC24 | 5/2 Secondary reference U.S. Government activity |
| 101B209DDPC1 | C/1 Advisory reference — outside the item-of-supply concept General Electric Co Naval and Drive Turbine Systems Dept |
| 101B209DDP1N702 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-104-7079 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-104-7079: Flange Seat to Disk End Height: 2.625 INCHES NOMINAL IN; Flange Diameter: 7.496 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN; Body Outside Diameter: 5.468 INCHES NOMINAL IN; Style Designator: THREADED FLANGED. 10 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.