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Safety Relief Valve NSN 4820-01-011-6156

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 4820-01-011-6156 NSN: 4820-01-011-6156

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G42 flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Adjustable Pressure Range
+10.0/+50.0 pounds per square inch
Maximum Operating Pressure
50.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Seat Angle
37.0 degrees all ends
Opening Pressure Setting
35.0 pounds per square inch
Outside Diameter Tube Accommodated
0.250 inches all ends
Material
Steel comp 303 flow control device
Material Specification
Qq-b-626, alloy 360 federal specification single material response body
Media For Which Designed
Air 1st response
Style Designator
Err-090
Thread Series Designator
Unjf all ends
FSC
4820 Nonpowered Valves
NIIN
010116156
NSN
4820010116156

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6507
Cage Code:
77445
Status:
A
MSDS:
Part Number:
639XB2-4-2
Cage Code:
86768
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 4820-01-011-6156
What are the manufacturers of nsn 4820010116156?
Does this nsn 4820010116156 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010116156
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 4820010116156 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010116156 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010116156?
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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