The Valve,safety Relief, cataloged under National Stock Number 4820-01-706-3113, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Haywardindl. Products, Inc.. Government technical data includes 20 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 | 4820-01-706-3113 |
| Primary Part Number | 73124 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Haywardindl. Products, Inc. |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Flange Shape | ROUND SECOND END |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Style | SOCKET ALL ENDS |
| Minimum Operating Temp | 34.0 FAHRENHEIT DEGF |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH (PSI) MINIMUM POWER DRIVE LBS |
| Adjustable Pressure Range | -10.0 TO 150.0 POUNDS PER SQUARE INCH LBS |
| Seat Angle | 90.0 DEGREES SECOND END |
| Maximum Operating Temp | 190.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 3.0 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Bolt Hole Quantity | 4 ALL ENDS |
| Media for Which Designed | LIQUID SINGLE RESPONSE |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) BODY |
| Opening Pressure Setting | 150.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 3.0 INCHES ALL ENDS IN |
| 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 |
|---|---|
| 73124 PRIMARY | Haywardindl. Products, Inc. (USA) |
NSN 4820-01-706-3113 is a Valve,safety Relief, manufactured by Haywardindl. Products, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-706-3113 has 1 manufacturer part number on file: 73124 (Haywardindl. Products, Inc.).
Key specifications for 73124: Flow Control Device: DIAPHRAGM; Flange Shape: ROUND SECOND END; Flange Face Design: PLAIN ALL ENDS; Connection Style: SOCKET ALL ENDS. 20 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.