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Safety Relief Valve NSN 4820-01-311-4720

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 4820-01-311-4720 NSN: 4820-01-311-4720

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
180.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring (tube) err-100
Valve Operation Method
Automatic or manual
Connection Type
Unthreaded internal tube all ends
Adjustable Pressure Range
+9.0/+15.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Outside Diameter Tube Accommodated
0.375 inches all ends
Special Features
With manual lift lever
Material
Copper alloy bodyrubber butadiene-acrylonitrile class nbr flow control devicenickel alloy seatnickel alloy stem
Media For Which Designed
Gas, inert single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
013114720
NSN
4820013114720

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1385 P/L2385B221
Cage Code:
35795
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 4820-01-311-4720
What are the manufacturers of nsn 4820013114720?
Does this nsn 4820013114720 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013114720
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 4820013114720 contain any precious metals?
No precious metal content.
Does nsn 4820013114720 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013114720?
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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