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Safety Relief Valve NSN 4820-00-400-9604

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 4820-00-400-9604 NSN: 4820-00-400-9604

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
Flared (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Unthreaded external hose 2nd end
Features Provided
Bonnet packing and pressure tight outlet side
Adjustable Pressure Range
+5.0/+100.0 pounds per square inch
Maximum Operating Pressure
1500.0 pounds per square inch single response
Thread Size
0.437 inches 1st end
Seat Angle
37.0 degrees 1st end
Opening Pressure Setting
5.0 pounds per square inch
Inside Diameter Hose Accommodated
0.250 inches 2nd end
Outside Diameter Hose Accommodated
0.375 inches
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Steel comp 410 flow control device
Material Specification
Qq-a-225/6, alloy2024, t351 federal specification single material response seat
Media For Which Designed
Oil, hydraulic single response
Style Designator
Angle
Thread Series Designator
Unf 1st end
FSC
4820 Nonpowered Valves
NIIN
004009604
NSN
4820004009604

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3336-00
Cage Code:
09445
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 4820-00-400-9604
What are the manufacturers of nsn 4820004009604?
Does this nsn 4820004009604 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004009604
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 4820004009604 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004009604 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004009604?
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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