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Safety Relief Valve NSN 4820-01-218-7581

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 4820-01-218-7581 NSN: 4820-01-218-7581

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Features and Characteristics

Pipe Size Accommodated
0.750 inches all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
150.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+59.0/+70.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Material
Nickel alloy flow control device
Media For Which Designed
Water-oil-gas 2nd response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012187581
NSN
4820012187581

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NMP-1108 DLO-40D/B-2 59T70L
Cage Code:
15187
Status:
A
MSDS:
Part Number:
DL040DB2-59T70P
Cage Code:
75954
Status:
A
MSDS:
Part Number:
NMP-1108
Cage Code:
75954
Status:
A
MSDS:
Part Number:
DLD40D82-59T70PSINMP1108 .75IN
Cage Code:
75954
Status:
A
MSDS:
Part Number:
DLD40D82-59T70PSINMP1180 .75IN
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 4820-01-218-7581
What are the manufacturers of nsn 4820012187581?
Does this nsn 4820012187581 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012187581
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 4820012187581 contain any precious metals?
No precious metal content.
Does nsn 4820012187581 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012187581?
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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