National Item Identification Number
01-341-8188
013418188
4820-01-341-8188
4820-01-341-8188
National Stock Number
Item Name
VALVE,SAFETY RELIEF
Federal Supply Class
4820
Description
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.
Commercial and Government Entity Code (Supplier Data)
90166
Reference Numbers (Part Numbers)
644XB-4-122
937849
Required Categories
MATERIAL
SURFACE TREATMENT
STYLE DESIGNATOR
MAXIMUM OPERATING PRESSURE
MAXIM
Required Description
STEEL COMP 303 BODY
PASSIVATE
C1 ANGLE
250.0 POUNDS PER SQUARE INCH SINGLE RE