The Valve,safety Relief, cataloged under National Stock Number 4820-01-459-8135, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Valvetech, Inc. Dba Valvetech Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (CAGE 31442); Valvetech, Inc. Dba Valvetech Inc (CAGE 0BXC9) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-459-8135 |
| Primary Part Number | 11106-2 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Valvetech, Inc. Dba Valvetech Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6392507-1 | Naval Sea Systems Command (USA) |
| 11106-2 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 11106-2 PRIMARY | Valvetech, Inc. Dba Valvetech Inc (USA) |
| Reference | Meaning |
|---|---|
| 6392507 | D/9 Drawing number reference only Naval Sea Systems Command |
| 564-6392507 | D/9 Drawing number reference only Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 4820-01-459-8135 is a Valve,safety Relief, manufactured by Valvetech, Inc. Dba Valvetech Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-459-8135 has 3 manufacturer part numbers on file: 6392507-1 (Naval Sea Systems Command), 11106-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 11106-2 (Valvetech, Inc. Dba Valvetech Inc).
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.