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Safety Relief Valve NSN 4820-01-187-6818

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 4820-01-187-6818 NSN: 4820-01-187-6818

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
3.000 inches
Adjustable Pressure Range
+141.0/+190.0 pounds per square inch
Material
Stainless steel stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
011876818
NSN
4820011876818

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
LL-3210-B 3IN.
Cage Code:
75954
Status:
A
MSDS:
Part Number:
NMP-421
Cage Code:
75954
Status:
A
MSDS:
Part Number:
LL3211B3IN141T19
Cage Code:
15187
Status:
A
MSDS:
Part Number:
NMP-909 3IN
Cage Code:
15187
Status:
A
MSDS:
Part Number:
LL3210B3IN141T190PSI
Cage Code:
75954
Status:
A
MSDS:
Part Number:
LL3211B3IN141T190PSI
Cage Code:
01343
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 4820-01-187-6818
What are the manufacturers of nsn 4820011876818?
Does this nsn 4820011876818 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011876818
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 4820011876818 contain any precious metals?
No precious metal content.
Does nsn 4820011876818 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011876818?
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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