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Safety Relief Valve NSN 4820-01-170-6808

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 4820-01-170-6808 NSN: 4820-01-170-6808

Features and Characteristics

Pipe Size Accommodated
0.750 inches 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Connection Style
Streamlined with one brazing ring err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe 2nd end
Adjustable Pressure Range
+56.0/+65.0 pounds per square inch
Criticality Code Justification
Zzzy
Material
Nickel alloy 400 stem or nickel alloy r-405 stem
Style Designator
Err-090
Reference Number Differentiating Characteristics
Quality control iaw navships level 1 items, cleaning in accordance with mil-c-52211
FSC
4820 Nonpowered Valves
NIIN
011706808
NSN
4820011706808

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
20167JM51M
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20167 PART 20167 JM51M
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20167 PART 20167 JM51MC1
Cage Code:
03950
Status:
A
MSDS:
Part Number:
20167JM51MC1
Cage Code:
03950
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 4820-01-170-6808
What are the manufacturers of nsn 4820011706808?
Does this nsn 4820011706808 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011706808
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 4820011706808 contain any precious metals?
No precious metal content.
Does nsn 4820011706808 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011706808?
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
  •   Quality Fast Service
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