The Valve,safety Relief, cataloged under National Stock Number 4820-01-417-8864, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-417-8864 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Minimum Operating Temp | -20.0 CELSIUS DEGC |
| Material Document and Classification | MIL-R-83248 MIL STD SINGLE MATERIAL RESPONSE PACKING |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | FUEL/OIL, HYDROCARBON FIRST RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID, SILICATE-ESTER BASE SECOND RESPONSE |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | RUBBER PACKING |
| 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 |
|---|---|
| Z40-0005-008 | 7/2 Vendor item drawing reference L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| D532A-6D-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-417-8864 is a Valve,safety Relief, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-417-8864: Minimum Operating Temp: -20.0 CELSIUS DEGC; Material Document and Classification: MIL-R-83248 MIL STD SINGLE MATERIAL RESPONSE PACKING; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 400.0 FAHRENHEIT SINGLE RESPONSE DEGF. 8 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.