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Safety Relief Valve NSN 4820-01-149-4886

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 4820-01-149-4886 NSN: 4820-01-149-4886

Features and Characteristics

Thread Class
3b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
Gasket sea (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Features Provided
Pressure tight outlet side
Maximum Operating Pressure
4100.0 pounds per square inch single response
Thread Size
0.437 inches all ends
Special Features
Designed for hydraulic fluid
Material
Stainless steel
Style Designator
Angle
Thread Series Designator
Unf all ends
FSC
4820 Nonpowered Valves
NIIN
011494886
NSN
4820011494886

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1159SCH226-1
Cage Code:
26512
Status:
A
MSDS:
Part Number:
OMP 3479-1
Cage Code:
33068
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 4820-01-149-4886
What are the manufacturers of nsn 4820011494886?
Does this nsn 4820011494886 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011494886
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 4820011494886 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820011494886 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011494886?
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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