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Safety Relief Valve NSN 4820-00-870-1274

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 4820-00-870-1274 NSN: 4820-00-870-1274

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Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
27.0 cubic feet per minute
Maximum Operating Temp
185.0 degrees fahrenheit single response
End Application
Air compessors, high pressure
Connection Style
G46b plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Adjustable Pressure Range
+300.0/+1500.0 pounds per square inch
Maximum Operating Pressure
1500.0 pounds per square inch single response
Thread Size
0.250 inches all ends
Opening Pressure Setting
450.0 pounds per square inch
Material
Steel comp 303 seat
Material Specification
Aisi 303 assn standard single material response seat
Media For Which Designed
Gas, inert 2nd response
Surface Treatment
Anodize
Style Designator
Err-090
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
008701274
NSN
4820008701274

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
VAL1362
Cage Code:
93232
Status:
A
MSDS:
Part Number:
230-1/4IN. 450PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
FIG.230
Cage Code:
01343
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 4820-00-870-1274
What are the manufacturers of nsn 4820008701274?
Does this nsn 4820008701274 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820008701274
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 4820008701274 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820008701274 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820008701274?
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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