NSN 4820-01-121-8057
Part Details | SAFETY RELIEF VALVE
4820-01-121-8057 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
Alternate Parts: 1511H, 1511-H, 3VP953H, 3VP953-H, 4820-01-121-8057, 01-121-8057, 4820011218057, 011218057
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | NOV 10, 1981 | 01-121-8057 | 05488 ( VALVE, SAFETY RELIEF ) |
REFERENCE DRAWINGS & PICTURES
ANGLE
Cross Reference | NSN 4820-01-121-8057
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1511-H | 16497 | DRESSER, INC.DBA DRESSER EQUIPMENT GROUP |
| 3VP953-H | 57756 | KOMDRESCO CANADA INC |
Technical Data | NSN 4820-01-121-8057
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | A ANGLE |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 4.000 INCHES |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 4.250 INCHES |
| VALVE SIZE | 2.500 INCHES |
| FLOW CONTROL DEVICE | DISK |
| VALVE OPERATION METHOD | AUTOMATIC |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | BOLTED |
| DISK LOADING METHOD | SPRING |
| END ITEM IDENTIFICATION | HEATING SYSTEM ONBOARD 270 FT WMEC CG VESSELS |