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Safety Relief Valve NSN 4820-01-148-6939

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 4820-01-148-6939 NSN: 4820-01-148-6939

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Connection Style
G42 flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Adjustable Pressure Range
+0.0/+3000.0 pounds per square inch
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.500 inches all ends
Seat Angle
37.0 degrees all ends
Special Features
With sintered breather
Material
Stainless steel
Media For Which Designed
Oil, hydraulic single response
Style Designator
Err-090
Thread Series Designator
Unf all ends
FSC
4820 Nonpowered Valves
NIIN
011486939
NSN
4820011486939

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
31498
Cage Code:
07270
Status:
A
MSDS:
Part Number:
895-28365 ITEM 32
Cage Code:
07270
Status:
A
MSDS:
Part Number:
895-28365
Cage Code:
07270
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 4820-01-148-6939
What are the manufacturers of nsn 4820011486939?
Does this nsn 4820011486939 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011486939
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 4820011486939 contain any precious metals?
No precious metal content.
Does nsn 4820011486939 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011486939?
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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