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Safety Relief Valve NSN 4820-01-236-5974

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 4820-01-236-5974 NSN: 4820-01-236-5974

Features and Characteristics

Pipe Size Accommodated
1.000 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
End Application
Spruance class dd (963)
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+27.0/+33.0 pounds per square inch
Maximum Operating Pressure
400.0 pounds per square inch single response
Criticality Code Justification
Feat
Special Features
Weapon system essential
Material
Nickel alloy flow control device
Material Specification
Qq-n-281 federal specification single material response stem
Style Designator
Err-090
Furnished Items And Quantity
1 lever
FSC
4820 Nonpowered Valves
NIIN
012365974
NSN
4820012365974

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
R10AF1F108-BM1
Cage Code:
34889
Status:
A
MSDS:
Part Number:
D50854
Cage Code:
34889
Status:
A
MSDS:
Part Number:
BBSAA04SEE
Cage Code:
65079
Status:
A
MSDS:
Part Number:
D48663 1IN
Cage Code:
34889
Status:
A
MSDS:
Part Number:
R10AF1F108
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 4820-01-236-5974
What are the manufacturers of nsn 4820012365974?
Does this nsn 4820012365974 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012365974
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 4820012365974 contain any precious metals?
No precious metal content.
Does nsn 4820012365974 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012365974?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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