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Safety Relief Valve NSN 4820-01-270-5764

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 4820-01-270-5764 NSN: 4820-01-270-5764

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
750.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
3.000 inches
Adjustable Pressure Range
+68.0/+78.0 pounds per square inch
Maximum Operating Pressure
200.0 pounds per square inch single response
Outside Diameter
6.000 inches 2nd end
Thickness
0.937 inches 2nd end
First Connection Face To Centerline Distance
4.812 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
4.750 inches
Bolt Circle Diameter
6.000 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.312 inches 2nd end
Raised Face Diameter
6.000 inches 1st end
Material
Stainless steel stem
Media For Which Designed
Steam single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012705764
NSN
4820012705764

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NMP-1556 0PTI0N
Cage Code:
75954
Status:
A
MSDS:
Part Number:
NMP-1556 OPTION
Cage Code:
15187
Status:
A
MSDS:
Part Number:
S10J-11 NMP15560
Cage Code:
15187
Status:
A
MSDS:
Part Number:
NMP-1556
Cage Code:
75954
Status:
A
MSDS:
Part Number:
NMP-1556 OPTION A68T78PSI
Cage Code:
75954
Status:
A
MSDS:
Part Number:
S10J-11 NMP1556OPT-A 68T78PSI
Cage Code:
75954
Status:
A
MSDS:
Part Number:
S10J-11 NMP15560PT-A 68T78PSI
Cage Code:
01343
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 4820-01-270-5764
What are the manufacturers of nsn 4820012705764?
Does this nsn 4820012705764 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012705764
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 4820012705764 contain any precious metals?
No precious metal content.
Does nsn 4820012705764 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012705764?
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
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