The Valve,safety Relief, cataloged under National Stock Number 4820-01-654-8487, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Monarch Supply Company, Inc. Dba Monarch Supply Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-654-8487 |
| Primary Part Number | NI/30.1-1.50 DN40ANGLED 50PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Monarch Supply Company, Inc. Dba Monarch Supply Co Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Valve Size | 1.50 INCHES IN |
| Media for Which Designed | OIL SINGLE RESPONSE |
| 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 |
|---|---|
| NI/30.1-1.50 DN40ANGLED 50PSI PRIMARY | Monarch Supply Company, Inc. Dba Monarch Supply Co Inc (USA) |
NSN 4820-01-654-8487 is a Valve,safety Relief, manufactured by Monarch Supply Company, Inc. Dba Monarch Supply Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-654-8487 has 1 manufacturer part number on file: NI/30.1-1.50 DN40ANGLED 50PSI (Monarch Supply Company, Inc. Dba Monarch Supply Co Inc).
Key specifications for NI/30.1-1.50 DN40ANGLED 50PSI: Flow Control Device: DISK; Valve Size: 1.50 INCHES IN; Media for Which Designed: OIL SINGLE RESPONSE. 3 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.