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Restrictor Check Valve NSN 4820-00-185-9850

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 4820-00-185-9850 NSN: 4820-00-185-9850

Features and Characteristics

Thread Class
2b 1st end
Thread Direction
Right-hand 1st end
Aperture Diameter
0.062 inches
Flow Control Device
Disk
Connection Style
Inverted flare (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Unthreaded external hose 3rd end
Mounting Position
Horizontal or vertical
Thread Size
0.438 inches 1st end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Rubber synthetic flow control device
Thread Series Designator
Unf 1st end
FSC
4820 Nonpowered Valves
NIIN
001859850
NSN
4820001859850

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
311204000
Cage Code:
51267
Status:
A
MSDS:
Part Number:
311204
Cage Code:
51267
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481309000
  • NAICS: 332911
  • SITC: 74730
  • Description: Check valves of materials other than copper, iron or steel
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-185-9850
What are the manufacturers of nsn 4820001859850?
Does this nsn 4820001859850 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001859850
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 4820001859850 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820001859850 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001859850?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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