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Safety Relief Valve NSN 4820-01-424-9868

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 4820-01-424-9868 NSN: 4820-01-424-9868

Features and Characteristics

Bolt Hole Quantity
8 2nd end
Maximum Operating Temp
650.0 degrees fahrenheit single response
End Application
Ticonderoga class cg (47)
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
3.000 inches
Adjustable Pressure Range
+128.0/+145.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Outside Diameter
7.500 inches 1st end
Thickness
0.813 inches 2nd end
First Connection Face To Centerline Distance
4.875 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
5.375 inches
Bolt Circle Diameter
6.000 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
5.000 inches 1st end
Special Features
Marine service approved
Material
Stainless steel stem
Material Specification
Aisi 304 assn standard single material response flow control device
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
014249868
NSN
4820014249868

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
55655003 2J3 HSMS15 128 T 145
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 4820-01-424-9868
What are the manufacturers of nsn 4820014249868?
Does this nsn 4820014249868 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014249868
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 4820014249868 contain any precious metals?
No precious metal content.
Does nsn 4820014249868 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014249868?
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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