The Disk,valve, cataloged under National Stock Number 4820-01-377-7472, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-377-7472 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Temp Rating | 100.0 FAHRENHEIT MINIMUM AND 366.0 FAHRENHEIT MAXIMUM DEGF |
| Style Designator | PLAIN |
| Material Document and Classification | ASTM B61 NATIONAL SPEC SINGLE MATERIAL RESPONSE |
| Media for Which Designed | STEAM OR WATER, COLD |
| Material | COPPER ALLOY 922 |
| 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 |
|---|---|
| F938-31-ITEM 9 | 5/9 Secondary reference Nibco Inc |
| F938-31 | D/9 Drawing number reference only Nibco Inc |
| TO-45930 | 3/9 Design control — primary reference Nibco Inc |
NSN 4820-01-377-7472 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-377-7472: Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Temp Rating: 100.0 FAHRENHEIT MINIMUM AND 366.0 FAHRENHEIT MAXIMUM DEGF; Style Designator: PLAIN; Material Document and Classification: ASTM B61 NATIONAL SPEC SINGLE MATERIAL RESPONSE. 6 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.