The Seat,valve, cataloged under National Stock Number 4820-00-119-9583, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-119-9583 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.313 INCHES NOMINAL IN |
| Flange Diameter | 1.375 INCHES NOMINAL IN |
| Body Outside Diameter | 1.219 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.609 INCHES NOMINAL IN |
| Under Flange Height | 1.062 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 37.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1110307 | 5/9 Secondary reference U.S. Government activity |
| 1712843 | 5/9 Secondary reference Westinghouse Electric Corp |
| 20J920PC182 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 1110307 | 5/9 Secondary reference U.S. Government activity |
| 1110307 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| 20J923PC615 | 5/9 Secondary reference Westinghouse Electric Corp |
| 1712843 | 3/2 Design control — primary reference U.S. Government activity |
| 1110307 | 5/9 Secondary reference Westinghouse Electric Corp |
| 20J920PC182 | 5/9 Secondary reference Westinghouse Electric Corp |
| 20J923PC615 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
NSN 4820-00-119-9583 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-119-9583: Flange Seat to Disk End Height: 0.313 INCHES NOMINAL IN; Flange Diameter: 1.375 INCHES NOMINAL IN; Body Outside Diameter: 1.219 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 9 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.
NSN 4820-00-119-9583 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.