NSN 4820-00-137-7991
Part Details | SAFETY RELIEF VALVE
4820-00-137-7991 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: 20129Q91M, A15634REVA, 20129REVAANDA15634REVA, 4820-00-137-7991, 00-137-7991, 4820001377991, 001377991
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | AUG 09, 1971 | 00-137-7991 | 05488 ( VALVE, SAFETY RELIEF ) |
REFERENCE DRAWINGS & PICTURES
ANGLE
Cross Reference | NSN 4820-00-137-7991
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 20129Q91M | 01343 | ANDERSON GREENWOOD LPDBA ANDERSON GREENWOOD CROSBY |
| A15634REVA | 01343 | ANDERSON GREENWOOD LPDBA ANDERSON GREENWOOD CROSBY |
| 20129REVAANDA15634REVA | 01343 | ANDERSON GREENWOOD LPDBA ANDERSON GREENWOOD CROSBY |
Technical Data | NSN 4820-00-137-7991
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | ANGLE |
| FLOW CONTROL DEVICE | DISK |
| VALVE OPERATION METHOD | AUTOMATIC |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | BOLTED |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 175.0 POUNDS PER SQUARE INCH |
| ADJUSTABLE PRESSURE RANGE | 163.0 TO 186.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | BONNET PACKING AND PRESSURE TIGHT OUTLET SIDE |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| CRITICALITY CODE JUSTIFICATION | ZZZY |