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Safety Relief Valve NSN 4820-01-481-1838

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 4820-01-481-1838 NSN: 4820-01-481-1838

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Maximum Operating Temp
150.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Adjustable Pressure Range
+10.0/+14.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Part Name Assigned By Controlling Agency
1/2 inch relief valve, type 1241-t and 1251-t
Special Features
This valve is approximately 10.625 inches tall and requires 2 inches clearance for disassembly. The cited drawing number was originally kunkle valves (cage 34494) which was purchased by anderson greenwood (cage 01343).
Media For Which Designed
Air 1st response
Furnished Items And Quantity
1 wrench
FSC
4820 Nonpowered Valves
NIIN
014811838
NSN
4820014811838

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8573B51M
Cage Code:
15187
Status:
A
MSDS:
Part Number:
8573
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 4820-01-481-1838
What are the manufacturers of nsn 4820014811838?
Does this nsn 4820014811838 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014811838
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 4820014811838 contain any precious metals?
No precious metal content.
Does nsn 4820014811838 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014811838?
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
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