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

Safety Relief Valve

Model / MPN: 70863-8 | NSN: 4820-01-089-9114
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
4820-01-089-9114
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
2b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G4 gasket sea (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+630.0/+1020.0 pounds per square inch
Maximum Operating Pressure
3600.0 pounds per square inch single response
Thread Size
0.500 inches all ends
Material
Plastic polychlorotrifluoroethylene seat
Material
Steel comp 303 body
Material
Steel comp 303 flow control device
Material Specification
Qq-s-763, class 303, cond a federal specification single material response body
Material Specification
Qq-s-763, class 303, cond a federal specification single material response flow control device
Media For Which Designed
Oil, hydraulic single response
Thread Series Designator
Unf all ends
70863 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M319T0866 Valve, Safety Relief 14 EA 10/29/2018
SPE7M319T9493 Valve, Safety Relief 18 EA 05/23/2019

Pricing and Availability

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70863-8 Cross Reference
  • 1014-B707
  • 7-863-8
  • 7-863-8
  • 1014-B707
  • 7-863-8
  • 7-863-8
  • 1014-B707
  • 7-863-8
  • 7-863-8
  • 1014-B707
  • 7-863-8
  • 7-863-8