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Safety Relief Valve NSN 4820-01-127-3841

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 4820-01-127-3841 NSN: 4820-01-127-3841

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Valve Operation Method
Automatic
Connection Type
Flange all ends
Valve Size
0.500 inches
Adjustable Pressure Range
+5.0/+270.0 pounds per square inch
Maximum Operating Pressure
270.0 pounds per square inch single response
First Connection Face To Centerline Distance
3.250 inches
Second Connection Face To Centerline Distance
3.250 inches
Flange Face Design
Plain all ends
Material
Steel comp 303 seat
Material Specification
Qq-s-764, type 303-canceled federal specification single material response seat
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
011273841
NSN
4820011273841

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
E8652D51SS
Cage Code:
15187
Status:
A
MSDS:
Part Number:
8652
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 4820-01-127-3841
What are the manufacturers of nsn 4820011273841?
Does this nsn 4820011273841 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011273841
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 4820011273841 contain any precious metals?
No precious metal content.
Does nsn 4820011273841 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011273841?
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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