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Restrictor Check Valve NSN 4820-00-283-1181

Item Description

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

NSN 4820-00-283-1181 NSN: 4820-00-283-1181

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Major End Items End items to which 4820-00-283-1181 is a component of

  • 16N Viking S-3b Aircraft

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Connection Style
Flareless 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 2nd end
Thready Qty Per Inch (tpi)
20 2nd end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.562 inches 1st end
Seat Angle
12.0 degrees 2nd end
Outside Diameter Tube Accommodated
0.375 inches 1st end
Media For Which Designed
Hydraulic fluid, phosphate-ester base single response
Surface Treatment
Passivate
Style Designator
Straight thru
Thread Series Designator
Unjf 1st end
FSC
4820 Nonpowered Valves
NIIN
002831181
NSN
4820002831181

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4R121-123
Cage Code:
82829
Status:
A
MSDS:
Part Number:
6F2962-123
Cage Code:
99240
Status:
A
MSDS:
Part Number:
749831-123
Cage Code:
98897
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4820-00-283-1181
What are the manufacturers of nsn 4820002831181?
Does this nsn 4820002831181 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002831181
A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. it does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Does nsn 4820002831181 contain any precious metals?
No precious metal content.
Does nsn 4820002831181 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002831181?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
20520
FIIG:
A530B0
App. Key:
Cond. Code:
1
Status:
A

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