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Safety Relief Valve NSN 4820-00-837-9969

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 4820-00-837-9969 NSN: 4820-00-837-9969

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Bonnet Type
Packing retaining
Disk Loading Method
Spring
Renewable Seat Ring Type
Pressed-in
Connection Style
G50 external seat for gasket seal (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
12 1st end
Adjustable Pressure Range
+910.0/+1010.0 pounds per square inch
Thread Size
1.750 inches 1st end
Style Designator
Err-090
Thread Series Designator
Un 1st end
FSC
4820 Nonpowered Valves
NIIN
008379969
NSN
4820008379969

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A318383-3
Cage Code:
80020
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 4820-00-837-9969
What are the manufacturers of nsn 4820008379969?
Does this nsn 4820008379969 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820008379969
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 4820008379969 contain any precious metals?
No precious metal content.
Does nsn 4820008379969 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820008379969?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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