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Safety Relief Valve NSN 4820-01-418-4680

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 4820-01-418-4680 NSN: 4820-01-418-4680

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Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Maximum Operating Temp
150.0 degrees fahrenheit single response
End Application
Seawolf class ssn
Connection Style
Socket err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Maximum Operating Pressure
400.0 pounds per square inch single response
Opening Pressure Setting
90.0 pounds per square inch
Material
Stainless steel stem
Material Specification
Qq-n-281 federal specification single material response seat
Style Designator
Err-090
Specification Data
81349-mil-v-22549 government specification
FSC
4820 Nonpowered Valves
NIIN
014184680
NSN
4820014184680

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MIL-V-22549
Cage Code:
81349
Status:
A
MSDS:
Part Number:
SW126 02E0090
Cage Code:
15187
Status:
A
MSDS:
Part Number:
211036670
Cage Code:
53711
Status:
A
MSDS:
Part Number:
SW126
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 4820-01-418-4680
What are the manufacturers of nsn 4820014184680?
Does this nsn 4820014184680 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014184680
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 4820014184680 contain any precious metals?
No precious metal content.
Does nsn 4820014184680 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014184680?
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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