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Safety Relief Valve NSN 4820-01-236-5978

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 4820-01-236-5978 NSN: 4820-01-236-5978

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
180.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring (tube) err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal tube all ends
Adjustable Pressure Range
+65.0/+100.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Material
Rubber synthetic seat
Material Specification
Qq-n-281, class a federal specification single material response stem
Media For Which Designed
Water, salt single response
Style Designator
Err-090
Furnished Items And Quantity
1 lever and 2 nut and 2 tailpiece
FSC
4820 Nonpowered Valves
NIIN
012365978
NSN
4820012365978

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
C3459 PL4142 65T 100PSI
Cage Code:
35795
Status:
A
MSDS:
Part Number:
C3459
Cage Code:
35795
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 4820-01-236-5978
What are the manufacturers of nsn 4820012365978?
Does this nsn 4820012365978 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012365978
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 4820012365978 contain any precious metals?
No precious metal content.
Does nsn 4820012365978 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012365978?
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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