NSN 4820-01-198-4203
Part Details | PRESSURE AND TEMPERATURE RELIEF VALVE
4820-01-198-4203 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: H776A, 5189443, 4820-01-198-4203, 01-198-4203, 4820011984203, 011984203
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 09, 1985 | 01-198-4203 | 16996 ( VALVE, RELIEF, PRESSURE AND TEMPERATURE ) |
REFERENCE DRAWINGS & PICTURES
STRAIGHT THRU
SWIVEL NUT, GASKET SEAL
FLARED
SWIVEL NUT, GASKET SEAL
FLARED
SWIVEL NUT, GASKET SEAL
FLARED
SWIVEL NUT, GASKET SEAL
FLARED
Cross Reference | NSN 4820-01-198-4203
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| H776A | 06239 | AUSCO,INC. |
| 5189443 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 4820-01-198-4203
| Characteristic | Specifications |
|---|---|
| BODY STYLE | STRAIGHT THRU |
| FACE TO FACE DISTANCE | 2.890 INCHES NOMINAL |
| BODY MATERIAL | STEEL, FED STD 66, AISI 316/SAE 30316 |
| SEAT MATERIAL | STEEL, FED STD 66, AISI 316/SAE 30316 |
| FLOW CONTROL DEVICE | G ANY ACCEPTABLE |
| STEM MATERIAL | STEEL, FED STD 66, AISI 316/SAE 30316 |
| END CONNECTION QUANTITY | 2 |
| FIRST END CONNECTION TYPE | THREADED INTERNAL BOSS |
| FIRST END STYLE DESIGNATOR | SWIVEL NUT, GASKET SEAL |
| FIRST END THREAD CLASS | 3B |
| FIRST END THREAD DIRECTION | RIGHT-HAND |
| FIRST END THREAD SERIES DESIGNATOR | UNJF |
| FIRST END NOMINAL THREAD SIZE | 0.750 INCHES |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND END CONNECTION TYPE | THREADED EXTERNAL BOSS |
| SECOND END STYLE DESIGNATOR | FLARED |
| SECOND END THREAD CLASS | 3A |
| SECOND END THREAD DIRECTION | RIGHT-HAND |
| SECOND END THREAD SERIES DESIGNATOR | UNJ |
| SECOND END NOMINAL THREAD SIZE | 0.750 INCHES |
| TEMP ADJUSTABILITY | NOT ADJUSTABLE |
| MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, SILICATE-ESTER BASE |
| TEMP RATING | 125.0 DEG FAHRENHEIT |
| VALVE DISCHARGE FLOW RATE | 10.0 GALLONS PER MINUTE |
| TEMP CONTROL DEVICE TYPE | THERMOSTATIC |
| OPENING PRESSURE SETTING | 80.0 POUNDS PER SQUARE INCH |