The Valve,safety Relief, cataloged under National Stock Number 4820-01-200-1722, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-200-1722 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Operating Pressure | 74.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 2.500 INCHES IN |
| Bonnet Type | INSIDE SPRING |
| Nondefinitive Spec/std Data | B GRADE AND 2.5IN. SIZE AND FLG STYLE IN |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | UNION |
| Material | COPPER ALLOY BODY |
| Opening Pressure Setting | 74.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| MILV24332 GRB 2.5IN FLG 74PSI | 2/2 Government specification standardization U.S. Government activity |
| 46-H-204/M5 2.5IN FLG 74PSI | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| MIL-DTL-24332 | 4/1 Identification reference U.S. Government activity |
| 2023000941M | C/1 Advisory reference — outside the item-of-supply concept Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 46-H-204/M5 2.5IN FLG 74PSI | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
| MIL-V-24332 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-200-1722 is a Valve,safety Relief, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-200-1722: Flow Control Device: DISK; Connection Type: FLANGE ALL ENDS; Style Designator: ANGLE FLANGED ENDS; Operating Pressure: 74.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 12 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.