The Disk,valve, cataloged under National Stock Number 4820-00-265-2817, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-265-2817 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 425.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 3.188 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Inside Diameter | 2.020 INCHES NOMINAL IN |
| Media for Which Designed | STEAM |
| Material | RUBBER |
| 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 |
|---|---|
| 302669-0119 | 3/9 Design control — primary reference Diamond Electronics Inc |
| A2E20C0PC87 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 302669-0119 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| A2E20C0PC87 | 5/9 Secondary reference Diamond Electronics Inc |
| A2E20C0PC87 | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
| 302669-0119 | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
NSN 4820-00-265-2817 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-265-2817: Overall Height: 0.469 INCHES NOMINAL IN; Pressure Rating: 300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 425.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 3.188 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.