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Safety Relief Valve NSN 4820-01-421-0134

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 4820-01-421-0134 NSN: 4820-01-421-0134

Features and Characteristics

Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
150.0 degrees fahrenheit single response
End Application
Wasp class lhd
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
2.500 inches
Adjustable Pressure Range
+72.0/+88.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Outside Diameter
6.000 inches 2nd end
Thickness
0.563 inches 1st end
First Connection Face To Centerline Distance
5.375 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
5.375 inches
Bolt Circle Diameter
5.500 inches 1st end
Flange Face Design
Plain all ends
Special Features
Valve size 2in x 2 1/2in
Material
Steel comp 303 stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
014210134
NSN
4820014210134

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
R10AJ2K213-BM1
Cage Code:
34889
Status:
A
MSDS:
Part Number:
D50002
Cage Code:
34889
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 4820-01-421-0134
What are the manufacturers of nsn 4820014210134?
Does this nsn 4820014210134 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014210134
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 4820014210134 contain any precious metals?
No precious metal content.
Does nsn 4820014210134 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014210134?
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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