NSN 4820-01-312-8198
Part Details | PRESSURE AND TEMPERATURE RELIEF VALVE
4820-01-312-8198 A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also VALVE, SAFETY RELIEF and VALVE, REGULATING. TEMPERATURE.
Alternate Parts: 20256Z51M, 20256, 20256Z51ML1, 20256L1, 4820-01-312-8198, 01-312-8198, 4820013128198, 013128198
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | DEC 22, 1989 | 01-312-8198 | 16996 ( VALVE, RELIEF, PRESSURE AND TEMPERATURE ) |
REFERENCE DRAWINGS & PICTURES
ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
Cross Reference | NSN 4820-01-312-8198
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 20256Z51M | 01343 | ANDERSON GREENWOOD LPDBA ANDERSON GREENWOOD CROSBY |
| 20256 | 01343 | ANDERSON GREENWOOD LPDBA ANDERSON GREENWOOD CROSBY |
| 20256Z51ML1 | 03950 | NAVAL INVENTORY CONTROL POINTMECHANICSBURG |
| 20256L1 | 03950 | NAVAL INVENTORY CONTROL POINTMECHANICSBURG |
Technical Data | NSN 4820-01-312-8198
| Characteristic | Specifications |
|---|---|
| BODY STYLE | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 6.938 INCHES NOMINAL |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 6.438 INCHES NOMINAL |
| BODY MATERIAL | NICKEL COPPER ALLOY, QQ-N-288, COMP A |
| SEAT MATERIAL | NICKEL COPPER ALLOY, QQ-N-288, COMP A |
| FLOW CONTROL DEVICE MATERIAL | 5$6 |
| STEM MATERIAL | 5$6 |
| TEMP ADJUSTABILITY | NOT ADJUSTABLE |
| TEMP RATING | 165.0 DEG FAHRENHEIT |
| ADJUSTABLE PRESSURE RANGE | +501.0 TO +600.0 POUNDS PER SQUARE INCH |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| CRITICALITY CODE JUSTIFICATION | ZZZY |
| FSC APPLICATION DATA | VALVE SAFETY RELIEF |