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Safety Relief Valve NSN 4820-00-455-1097

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 4820-00-455-1097 NSN: 4820-00-455-1097

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
280.0 degrees fahrenheit 2nd response
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
12 all ends
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
1.312 inches all ends
Seat Angle
37.0 degrees all ends
Opening Pressure Setting
10.0 pounds per square inch
Special Features
Valve size 1.000 in.
Material
Steel seat
Material Specification
Fed standard 66 federal specification 1st material response stem
Media For Which Designed
Helium 5th response
Style Designator
Straight through w/baffle
Thread Series Designator
Unj all ends
Furnished Items And Quantity
1 deflector cap
FSC
4820 Nonpowered Valves
NIIN
004551097
NSN
4820004551097

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D559T-16D-10-30
Cage Code:
91816
Status:
A
MSDS:
Part Number:
513-50053
Cage Code:
9F512
Status:
A
MSDS:
Part Number:
D559T-16D-10
Cage Code:
91816
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 4820-00-455-1097
What are the manufacturers of nsn 4820004551097?
Does this nsn 4820004551097 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004551097
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 4820004551097 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004551097 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004551097?
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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