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Safety Relief Valve NSN 4820-01-037-4903

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 4820-01-037-4903 NSN: 4820-01-037-4903

Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Connection Style
G9 plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+140.0/+250.0 pounds per square inch
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
1.000 inches all ends
Opening Pressure Setting
160.0 pounds per square inch
Material
Steel flow control device
Media For Which Designed
Oil, hydraulic 2nd response
Style Designator
Err-090
Thread Series Designator
Nptf all ends
FSC
4820 Nonpowered Valves
NIIN
010374903
NSN
4820010374903

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
CR-1600-S-10
Cage Code:
09990
Status:
A
MSDS:
Part Number:
CR1600S10-1IN16
Cage Code:
09990
Status:
A
MSDS:
Part Number:
151-1IN160PSIGS
Cage Code:
99565
Status:
A
MSDS:
Part Number:
151-1IN160PSIGSETG
Cage Code:
99565
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 4820-01-037-4903
What are the manufacturers of nsn 4820010374903?
Does this nsn 4820010374903 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010374903
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 4820010374903 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010374903 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010374903?
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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