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Safety Relief Valve NSN 4820-01-187-1970

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 4820-01-187-1970 NSN: 4820-01-187-1970

Features and Characteristics

Pipe Size Accommodated
1.315 inches 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
Socket err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+138.0/+153.0 pounds per square inch
Material
Nickel alloy body
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
011871970
NSN
4820011871970

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D48DUU-04 3/4 INCH
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
20251-8-926SS
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20251
Cage Code:
01343
Status:
A
MSDS:
Part Number:
D48UU-04 3/4 INCH
Cage Code:
5P967
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 4820-01-187-1970
What are the manufacturers of nsn 4820011871970?
Does this nsn 4820011871970 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011871970
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 4820011871970 contain any precious metals?
No precious metal content.
Does nsn 4820011871970 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011871970?
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
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