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Safety Relief Valve NSN 4820-01-219-6518

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 4820-01-219-6518 NSN: 4820-01-219-6518

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
8 1st end
Maximum Operating Temp
450.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
4.000 inches
Maximum Operating Pressure
285.0 pounds per square inch single response
Outside Diameter
9.000 inches 1st end
Thickness
0.938 inches 1st end
First Connection Face To Centerline Distance
6.375 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
6.125 inches
Bolt Circle Diameter
7.500 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Diameter
6.188 inches 1st end
Material
Stainless steel stem
Material Specification
Astm a582 type 416 cond a assn standard single material response stem
Style Designator
C1a angle flanged ends
FSC
4820 Nonpowered Valves
NIIN
012196518
NSN
4820012196518

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1905KC 165T187P
Cage Code:
16497
Status:
A
MSDS:
Part Number:
1905KC-1
Cage Code:
16497
Status:
A
MSDS:
Part Number:
1900K
Cage Code:
16497
Status:
A
MSDS:
Part Number:
1900K REV 4 AND B/M 9000601
Cage Code:
16497
Status:
A
MSDS:
Part Number:
1905K1
Cage Code:
16497
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 4820-01-219-6518
What are the manufacturers of nsn 4820012196518?
Does this nsn 4820012196518 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012196518
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 4820012196518 contain any precious metals?
No precious metal content.
Does nsn 4820012196518 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012196518?
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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