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Safety Relief Valve NSN 4820-01-130-1821

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 4820-01-130-1821 NSN: 4820-01-130-1821

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Maximum Operating Temp
425.0 degrees fahrenheit single response
Connection Style
Streamlined with one brazing ring err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+15.0/+18.0 pounds per square inch
Maximum Operating Pressure
200.0 pounds per square inch single response
Material
Nickel alloy flow control device
Material Specification
Qq-n-281 federal specification single material response stem
Media For Which Designed
Steam single response
Style Designator
Err-090
Furnished Items And Quantity
2 nut and 2 tailpiece
FSC
4820 Nonpowered Valves
NIIN
011301821
NSN
4820011301821

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
E8612C41M
Cage Code:
15187
Status:
A
MSDS:
Part Number:
8610
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 4820-01-130-1821
What are the manufacturers of nsn 4820011301821?
Does this nsn 4820011301821 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011301821
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 4820011301821 contain any precious metals?
No precious metal content.
Does nsn 4820011301821 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011301821?
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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