The Disk,valve, cataloged under National Stock Number 4820-01-443-3830, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-443-3830 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | SWING CHECK |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 1018 | D/9 Drawing number reference only Kings Point Machinery Inc Dba Kpm |
| FIG 1018 2.50IN.TYPICAL IT3 | 5/9 Secondary reference Cook Bros. Mfg.& Supply Co. |
| FIG 1018 2.50IN.TYPICAL IT3 | 3/9 Design control — primary reference Kings Point Machinery Inc Dba Kpm |
NSN 4820-01-443-3830 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-443-3830: Style Designator: SWING CHECK; Special Features: USED ON 2.50IN VALVE,SCUPPER IN; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: COPPER ALLOY. 2 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.