The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-602-8298, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-602-8298 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | BALL AND POPPET |
| Body Style | STRAIGHT THRU |
| Material | COBALT ALLOY SEAT |
| Material | COBALT ALLOY BODY |
| Furnished Items | FILTER SCREEN |
| 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 |
|---|---|
| 2633-100-01 PC NO. 304-1 | 5/1 Secondary reference U.S. Government activity |
| 801-6640965 PC NO. 304-1 | 5/1 Secondary reference Naval Sea Systems Command |
| PHFA2815420D | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-602-8298 is a Valve,relief,pressure and Temper, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-602-8298: Flow Control Device: BALL AND POPPET; Body Style: STRAIGHT THRU; Special Features: NOMINAL SYSTEM PRESSURE: 5000 PSI; SYSTEM PEAK PRESSURE: 7500 PSI MAX; LENGTH: 1.355 IN; WIDTH: 0.281. IN; Part Name Assigned by Controlling Agency: HIGH PRESSURE SCREENED 0.281 NACE COMPLIANT PRI. 5 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.