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Safety Relief Valve NSN 4820-01-201-2656

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 4820-01-201-2656 NSN: 4820-01-201-2656

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
End Application
Apl: 883110492
Connection Style
Streamlined with one brazing ring (tube) err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal tube all ends
Adjustable Pressure Range
+35.0/+44.0 pounds per square inch
Maximum Operating Pressure
4000.0 pounds per square inch single response
Outside Diameter Tube Accommodated
0.750 inches all ends
Material
Steel comp 316 stem
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012012656
NSN
4820012012656

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1251T 3-4IN
Cage Code:
01343
Status:
A
MSDS:
Part Number:
9969-1251T 3-4I
Cage Code:
01343
Status:
A
MSDS:
Part Number:
BCSAA04SDD
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
9969G51M
Cage Code:
01343
Status:
A
MSDS:
Part Number:
9969-1251T 3/4 IN 35PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
D52UU-04 3/4 INCH
Cage Code:
65079
Status:
A
MSDS:
Part Number:
9966
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 4820-01-201-2656
What are the manufacturers of nsn 4820012012656?
Does this nsn 4820012012656 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012012656
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 4820012012656 contain any precious metals?
No precious metal content.
Does nsn 4820012012656 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012012656?
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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