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Safety Relief Valve NSN 4820-00-679-8793

Item 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.

NSN 4820-00-679-8793 NSN: 4820-00-679-8793

Features and Characteristics

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand all ends
Flow Control Device
Piston
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Adjustable Pressure Range
+50.0/+450.0 pounds per square inch
Maximum Operating Pressure
490.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Opening Pressure Setting
90.0 pounds per square inch
Material
Rubber seat
Material Specification
Sae ca360 assn standard single material response body
Media For Which Designed
Refrigerant 12 single response
Style Designator
Straight thru
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
006798793
NSN
4820006798793

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
B522195FRE0N
Cage Code:
28193
Status:
A
MSDS:
Part Number:
4027C2-27
Cage Code:
72759
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481400000
  • NAICS: 332911
  • SITC: 74740
  • Description: Safety or relief valves
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-679-8793
What are the manufacturers of nsn 4820006798793?
Does this nsn 4820006798793 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820006798793
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.
Does nsn 4820006798793 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820006798793 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820006798793?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
App. Key:
AP
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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