NSN 4820-00-761-1981
Part Details | PRESSURE AND TEMPERATURE RELIEF VALVE
4820-00-761-1981 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: 177237, 17723-7, 1771093, HSRV185, HSRV-1-85, HSRV1, HSRV-1, 4820-00-761-1981, 00-761-1981, 4820007611981, 007611981
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JAN 01, 1960 | 00-761-1981 | 16996 ( VALVE, RELIEF, PRESSURE AND TEMPERATURE ) |
REFERENCE DRAWINGS & PICTURES
ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
PLAIN
PLAIN
PLAIN
PLAIN
Cross Reference | NSN 4820-00-761-1981
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 17723-7 | 19857 | ELECTRIC HEATER COMPANY, THEDBA HUBBELL-ELECTRIC HEATER COMPANY |
| 1771093 | 19857 | ELECTRIC HEATER COMPANY, THEDBA HUBBELL-ELECTRIC HEATER COMPANY |
| HSRV-1-85 | 19857 | ELECTRIC HEATER COMPANY, THEDBA HUBBELL-ELECTRIC HEATER COMPANY |
| HSRV-1 | 19857 | ELECTRIC HEATER COMPANY, THEDBA HUBBELL-ELECTRIC HEATER COMPANY |
Technical Data | NSN 4820-00-761-1981
| Characteristic | Specifications |
|---|---|
| BODY STYLE | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| BODY MATERIAL | BRONZE |
| OUTSIDE SURFACE TREATMENT | ANY ACCEPTABLE |
| SEAT MATERIAL | BRONZE |
| FLOW CONTROL DEVICE | W ANY ACCEPTABLE |
| FLOW CONTROL DEVICE MATERIAL | BRONZE |
| STEM MATERIAL | STEEL, CORROSION RESISTING |
| END CONNECTION QUANTITY | 2 |
| FIRST END CONNECTION TYPE | UNTHREADED INTERNAL PIPE |
| FIRST END STYLE DESIGNATOR | PLAIN |
| FIRST END NOMINAL PIPE SIZE ACCOMMODATED | 0.500 INCHES |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND END CONNECTION TYPE | UNTHREADED INTERNAL PIPE |
| SECOND END STYLE DESIGNATOR | PLAIN |
| SECOND END NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES |
| TEMP ADJUSTABILITY | NOT ADJUSTABLE |
| MEDIA FOR WHICH DESIGNED | WATER, FRESH |
| TEMP RATING | 180.0 DEG FAHRENHEIT |
| TEMP CONTROL DEVICE TYPE | FUSIBLE |
| OPENING PRESSURE SETTING | 80.0 POUNDS PER SQUARE INCH |