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Worldwide distributor of NSN parts and consumables located in the USA.

Safety Relief Valve

Model / MPN: 645B-9-108SS | NSN: 4820-01-362-1578
ITAR Registered seal

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.

Product Details
NATO Stock Number
4820-01-362-1578
Sold in multiples of
1 EA
DEMIL
NO
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
225.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Connection Type
Threaded internal tube all ends
Maximum Operating Pressure
1500.0 pounds per square inch single response
Thread Size
0.500 inches all ends
Outside Diameter Tube Accommodated
0.500 inches all ends
Material
Steel comp 303 body
Thread Series Designator
Unf all ends

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645B-9-108SS Cross Reference
  • 645B-9-108-28
  • 645B-9-108-28