The Valve,safety Relief, cataloged under National Stock Number 4820-01-659-5864, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aalberts Integrated Piping Systems Americas, Inc.. Government technical data includes 10 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 | 4820-01-659-5864 |
| Primary Part Number | 15-112-B-240-CE |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aalberts Integrated Piping Systems Americas, Inc. |
| Status | ACTIVE |
| Style Designator | SCREW-IN CARTRIDGE |
| Material Document and Classification | ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Valve Size | 0.25 INCHES IN |
| Adjustable Pressure Range | +15.0 TO 250.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Size | 0.25 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Material | RUBBER FLUOROCARBON CLASS FPM SEAT |
| Thread Series Designator | NPT ALL ENDS |
| Opening Pressure Setting | 240.00 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 15-112-B-240-CE PRIMARY | Aalberts Integrated Piping Systems Americas, Inc. (USA) |
NSN 4820-01-659-5864 is a Valve,safety Relief, manufactured by Aalberts Integrated Piping Systems Americas, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-659-5864 has 1 manufacturer part number on file: 15-112-B-240-CE (Aalberts Integrated Piping Systems Americas, Inc.).
Key specifications for 15-112-B-240-CE: Style Designator: SCREW-IN CARTRIDGE; Material Document and Classification: ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE BODY; Valve Size: 0.25 INCHES IN; Adjustable Pressure Range: +15.0 TO 250.0 POUNDS PER SQUARE INCH LBS. 10 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.