National Item Identification Number
01-437-6718
014376718
4820-01-437-6718
4820-01-437-6718
National Stock Number
Item Name
VALVE,RELIEF,PRESSURE AND TEMPERATURE
Federal Supply Class
4820
Description
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.
Commercial and Government Entity Code (Supplier Data)
77445
Reference Numbers (Part Numbers)
518145
Required Categories
BODY MATERIAL
SEAT MATERIAL
FLOW CONTROL DEVICE
END CONNECTION QUANTITY
SECO
Required Description
STEEL, AMS 5354
STEEL, AMS 5354
PISTON, FREE TYPE
2
IDENTICAL
AIR
NOT RATE