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Safety Relief Valve NSN 4820-01-368-1772

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 4820-01-368-1772 NSN: 4820-01-368-1772

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Disk Loading Method
Spring
Maximum Operating Temp
165.0 degrees fahrenheit single response
End Application
Oliver perry class ffg
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+45.0/+57.0 pounds per square inch
Maximum Operating Pressure
440.0 pounds per square inch single response
Criticality Code Justification
Feat
Special Features
Weapon system essential
Material
Stainless steel stem
Material Specification
Aisi 304 assn standard single material response seat
Style Designator
Err-090
Furnished Items And Quantity
2 tailpiece
FSC
4820 Nonpowered Valves
NIIN
013681772
NSN
4820013681772

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D44UU-01H-1/2-3/4
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
202343941SS
Cage Code:
15187
Status:
A
MSDS:
Part Number:
D44UU-01 1/2X3/4
Cage Code:
65079
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 4820-01-368-1772
What are the manufacturers of nsn 4820013681772?
Does this nsn 4820013681772 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013681772
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 4820013681772 contain any precious metals?
No precious metal content.
Does nsn 4820013681772 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013681772?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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