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Safety Relief Valve NSN 4820-00-333-7979

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 4820-00-333-7979 NSN: 4820-00-333-7979

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Features and Characteristics

Flow Control Device
Poppet
Disk Loading Method
Spring
Bolt Hole Quantity
4 1st end
Maximum Operating Temp
230.0 degrees fahrenheit 2nd response
Width
1.062 inches 1st end
Length
1.062 inches 1st end
Valve Operation Method
Automatic
Flange Shape
Rectangular with holes 1st end
Connection Type
Flange 1st end
Opening Pressure Setting
5.5 pounds per square inch
Thickness
0.145 inches 1st end
Bolt Hole Diameter
0.050 inches 1st end
Center To Center Distance Between Bolt Holes Along Length
0.812 inches 1st end
Center To Center Distance Between Bolt Holes Along Width
0.812 inches 1st end
Flange Face Design
Plain 1st end
Material
Rubber synthetic seat
Media For Which Designed
Oil, lubricating, diester base 2nd response
Surface Treatment
Anodize
Style Designator
Straight thru
FSC
4820 Nonpowered Valves
NIIN
003337979
NSN
4820003337979

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1328-537036
Cage Code:
92003
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 4820-00-333-7979
What are the manufacturers of nsn 4820003337979?
Does this nsn 4820003337979 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003337979
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 4820003337979 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820003337979 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003337979?
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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