The Valve,safety Relief, cataloged under National Stock Number 4820-01-218-1803, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-218-1803 |
| Primary Part Number | 601-25-3048 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems |
| Status | ACTIVE |
| Opening Pressure Setting | 2750.0 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 |
| Part Number | Manufacturer |
|---|---|
| 601-25-3048 | Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems (CAN) |
| Reference | Meaning |
|---|---|
| CRA-2750 PSI | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| CRA-2750 PSI | 3/9 Design control — primary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
NSN 4820-01-218-1803 is a Valve,safety Relief, manufactured by Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-218-1803 has 1 manufacturer part number on file: 601-25-3048 (Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems).
Key specifications for 601-25-3048: Special Features: CARTRIDGE TYPE;WITH CHECK ASSEMBLY; Opening Pressure Setting: 2750.0 POUNDS PER SQUARE INCH LBS; Valve Operation Method: AUTOMATIC. 2 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.