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Safety Relief Valve NSN 4820-00-288-7295

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 4820-00-288-7295 NSN: 4820-00-288-7295

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
425.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.000 inches
Adjustable Pressure Range
+36.0/+55.0 pounds per square inch
Maximum Operating Pressure
125.0 pounds per square inch single response
Outside Diameter
4.250 inches all ends
Thickness
0.438 inches all ends
First Connection Face To Centerline Distance
3.250 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
3.250 inches
Bolt Circle Diameter
3.125 inches all ends
Flange Face Design
Plain all ends
Special Features
W/lifting lever
Material
Nickel alloy flow control device
Media For Which Designed
Steam single response
Style Designator
Angle flanged ends
FSC
4820 Nonpowered Valves
NIIN
002887295
NSN
4820002887295

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1250
Cage Code:
01343
Status:
A
MSDS:
Part Number:
R52187
Cage Code:
01343
Status:
A
MSDS:
Part Number:
A-6815-F
Cage Code:
01343
Status:
A
MSDS:
Part Number:
A-6815-F ITEM 11
Cage Code:
01343
Status:
A
MSDS:
Part Number:
ML210050M
Cage Code:
01343
Status:
A
MSDS:
Part Number:
DD445S4824-53ALT2ITEM1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
DD445S4824-53ALT2ITEM12
Cage Code:
80064
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 4820-00-288-7295
What are the manufacturers of nsn 4820002887295?
Does this nsn 4820002887295 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002887295
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 4820002887295 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002887295 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002887295?
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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