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Safety Relief Valve NSN 4820-01-490-0301

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 4820-01-490-0301 NSN: 4820-01-490-0301

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Features and Characteristics

Maximum Operating Temp
900.0 degrees fahrenheit single response
End Application
E/i: valve, relief 1.5h3 pop safety valve style hna
Valve Operation Method
Automatic
Valve Size
1.500 inches
First Connection Face To Centerline Distance
5.625 inches
Second Connection Face To Centerline Distance
4.875 inches
Special Features
1.5 inch nhas 37 inlet, 3 inch outlet , 900lb inlet, 150lb outlet h orface, flanged .75 in. On 6 in.Circle, 4 holes, .875 in. Holes on 4.5 in.Circle, 4 holes, valve setting is not to exceed 640lbs.
Material
Steel uns j12522 body
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
014900301
NSN
4820014900301

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
57694 MODEL 1
Cage Code:
15187
Status:
A
MSDS:
Part Number:
A-32934-1
Cage Code:
15187
Status:
A
MSDS:
Part Number:
D-29631
Cage Code:
15187
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 4820-01-490-0301
What are the manufacturers of nsn 4820014900301?
Does this nsn 4820014900301 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014900301
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 4820014900301 contain any precious metals?
No precious metal content.
Does nsn 4820014900301 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014900301?
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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