The Valve,restrictor Check, cataloged under National Stock Number 4820-01-582-8533, 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2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-582-8533 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| 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 |
|---|---|
| RCRA1875200D | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-582-8533 is a Valve,restrictor Check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-582-8533: Flow Control Device: BALL; Connection Type: THREADED INTERNAL BOSS ALL ENDS; Special Features: METERED LOHM RATE: 2000, MONINAL SCREEN HOLE SIZE IN INCHES: 0.008; 0.187 INCH RESTRICTOR CHEK-METERED FLOW IN; Part Name Assigned by Controlling Agency: VALVE, RESTRICTOR CHECK. 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.